Formula Index

547 formulas across all calculators

Physics (128)

Velocity Calculatorv = d / tAcceleration Calculatora = (v − v₀) / tDisplacement CalculatorUsing standard equations of motionProjectile Motion CalculatorUsing standard equations of motionMaximum Height Projectile Motion CalculatorUsing standard equations of motionTime Of Flight Projectile Motion CalculatorUsing standard equations of motionRange Projectile Motion CalculatorUsing standard equations of motionTrajectory Projectile Motion CalculatorUsing standard equations of motionFree Fall CalculatorUsing standard equations of motionWork CalculatorF = ma (Newton's Second Law)Tension CalculatorF = ma (Newton's Second Law)Normal Force CalculatorF = ma (Newton's Second Law)Friction CalculatorF = ma (Newton's Second Law)Centrifugal Force CalculatorF = ma (Newton's Second Law)Gravitational Force CalculatorF = ma (Newton's Second Law)Conservation Of Momentum CalculatorF = ma (Newton's Second Law)Impulse And Momentum CalculatorF = ma (Newton's Second Law)Drag Equation CalculatorF = ma (Newton's Second Law)Buoyancy CalculatorF = ma (Newton's Second Law)Kinetic Energy CalculatorKE = ½mv²Work And Power CalculatorP = V × I, V = I × RTorque Calculatorω = 2π × RPM/60, F = mω²rAngular Velocity Calculatorω = 2π × RPM/60, F = mω²rAngular Frequency Calculatorω = 2π × RPM/60, F = mω²rMass Moment Of Inertia Calculatorω = 2π × RPM/60, F = mω²rSimple Pendulum Calculatorω = 2π × RPM/60, F = mω²rSimple Harmonic Motion Calculatorω = 2π × RPM/60, F = mω²rHydraulic Pressure CalculatorForce = Pressure × AreaHydrostatic Pressure CalculatorForce = Pressure × AreaPump Horsepower CalculatorP = V × I, V = I × RSpecific Heat CalculatorQ = mcΔTHeat Transfer CalculatorQ = mcΔTHeat Transfer Coefficient CalculatorQ = mcΔTThermal Energy CalculatorQ = mcΔTThermal Efficiency CalculatorQ = mcΔTThermal Conductivity CalculatorQ = mcΔTThermal Resistance CalculatorQ = mcΔTLatent Heat CalculatorQ = mcΔTThermodynamic Processes CalculatorQ = mcΔTWater Heating CalculatorQ = mcΔTLMTD CalculatorQ = mcΔTJoule Heating CalculatorQ = mcΔTNewtons Law Of Cooling CalculatorQ = mcΔTIdeal Gas Law Calculatorn = PV/(RT), R = 0.08206 L·atm/(mol·K)Charles Law Calculatorn = PV/(RT), R = 0.08206 L·atm/(mol·K)Gay Lussacs Law Calculatorn = PV/(RT), R = 0.08206 L·atm/(mol·K)Air Density Calculatorn = PV/(RT), R = 0.08206 L·atm/(mol·K)Gas Density Calculatorn = PV/(RT), R = 0.08206 L·atm/(mol·K)Wavelength Calculatorv = fλ (speed = frequency × wavelength)Frequency Calculatorv = fλ (speed = frequency × wavelength)Speed Of Sound Calculatorv = fλ (speed = frequency × wavelength)Speed Of Light Calculatorv = fλ (speed = frequency × wavelength)Doppler Effect Calculatorv = fλ (speed = frequency × wavelength)Diffraction Calculatorv = fλ (speed = frequency × wavelength)Index Of Refraction Calculatorv = fλ (speed = frequency × wavelength)Snells Law Calculatorv = fλ (speed = frequency × wavelength)Thin Lens Equation Calculatorv = fλ (speed = frequency × wavelength)Lensmakers Equation Calculatorv = fλ (speed = frequency × wavelength)Brewster Angle Calculatorv = fλ (speed = frequency × wavelength)Angular Resolution Calculatorv = fλ (speed = frequency × wavelength)Parallax Calculatorv = fλ (speed = frequency × wavelength)Laser Linewidth Calculatorv = fλ (speed = frequency × wavelength)Watts To Amps CalculatorV = IR, P = VI, P = I²RVoltage Divider CalculatorV = IR, P = VI, P = I²RSeries Resistor CalculatorV = IR, P = VI, P = I²RParallel Resistor CalculatorV = IR, P = VI, P = I²RCapacitors In Series CalculatorV = IR, P = VI, P = I²RResistor Color Code CalculatorV = IR, P = VI, P = I²RRc Circuit CalculatorV = IR, P = VI, P = I²RLow Pass Filter CalculatorV = IR, P = VI, P = I²RCutoff Frequency CalculatorV = IR, P = VI, P = I²RWire Resistance CalculatorV = IR, P = VI, P = I²RDC Wire Size CalculatorV = IR, P = VI, P = I²R100 Amp Wire Size CalculatorV = IR, P = VI, P = I²R220v Wire Size CalculatorV = IR, P = VI, P = I²R24v Wire Size CalculatorV = IR, P = VI, P = I²RHp To Amps CalculatorV = IR, P = VI, P = I²RKVA CalculatorV = IR, P = VI, P = I²RKVA To Amperage CalculatorV = IR, P = VI, P = I²RPower Factor CalculatorV = IR, P = VI, P = I²RRMS Voltage CalculatorV = IR, P = VI, P = I²RBreaker Size CalculatorV = IR, P = VI, P = I²R3 Phase Motor Amperage CalculatorV = IR, P = VI, P = I²RElectric Field Of A Point Charge CalculatorP = V × I, V = I × RPhotoelectric Effect CalculatorP = V × I, V = I × RDensity Calculatorρ = m/V, SG = ρ/ρ_waterWater Density Calculatorρ = m/V, SG = ρ/ρ_waterWater Viscosity Calculatorρ = m/V, SG = ρ/ρ_waterSpecific Gravity Calculatorρ = m/V, SG = ρ/ρ_waterVolume To Mass Calculatorρ = m/V, SG = ρ/ρ_waterDensity Mass Volume Calculatorρ = m/V, SG = ρ/ρ_waterGold Weight Calculatorρ = m/V, SG = ρ/ρ_waterCopper Wire Weight Calculatorρ = m/V, SG = ρ/ρ_waterNumber Density Calculatorρ = m/V, SG = ρ/ρ_waterPoissons Ratio Calculatorρ = m/V, SG = ρ/ρ_waterReverberation Time CalculatorAmount = Base × Rate / 100Distance Attenuation CalculatorSpeed = Distance / TimeDew Point CalculatorDew point approximation, heat index (simplified), air density with altitude correctionRelative Humidity CalculatorDew point approximation, heat index (simplified), air density with altitude correctionCloud Base CalculatorDew point approximation, heat index (simplified), air density with altitude correctionMixed Air CalculatorDew point approximation, heat index (simplified), air density with altitude correctionMixed Air Temperature CalculatorDew point approximation, heat index (simplified), air density with altitude correctionWiens Law CalculatorDew point approximation, heat index (simplified), air density with altitude correctionSunrise Sunset CalculatorDew point approximation, heat index (simplified), air density with altitude correctionPressure CalculatorForce = Pressure × AreaSection Modulus Calculatorσ = F/A (stress = force / area)Factor Of Safety Calculatorσ = F/A (stress = force / area)Wind Load Calculatorσ = F/A (stress = force / area)Stopping Distance Calculatorσ = F/A (stress = force / area)Car Crash Force Calculatorσ = F/A (stress = force / area)Piston Force Calculatorσ = F/A (stress = force / area)Pneumatic Cylinder Force Calculatorσ = F/A (stress = force / area)Linear Actuator Force Calculatorσ = F/A (stress = force / area)True Airspeed CalculatorSpeed = Distance / TimeGround Speed CalculatorSpeed = Distance / TimeGenerator Power CalculatorP = VI, P_in = P_out / ηIdeal Transformer CalculatorP = VI, P_in = P_out / ηWatt Hours CalculatorP = VI, P_in = P_out / ηBtu To Tons Converter CalculatorP = VI, P_in = P_out / ηEngine Displacement CalculatorP = VI, P_in = P_out / ηPounds Per Minute CalculatorP = VI, P_in = P_out / ηFan CalculatorP = VI, P_in = P_out / ηEfficiency CalculatorP = VI, P_in = P_out / ηApi Gravity CalculatorKE = ½mv², PE = mghHelical Coil CalculatorKE = ½mv², PE = mghLight Year CalculatorKE = ½mv², PE = mghEffectiveness NTU CalculatorKE = ½mv², PE = mghLightning Distance CalculatorKE = ½mv², PE = mgh

Finance (107)

Investment CalculatorFV = PV × (1 + r)^tCompound Interest CalculatorA = P(1 + r/n)^(nt) + PMT × ((1 + r/n)^(nt) − 1) / (r/n)Simple Interest CalculatorI = P × r × t, where P = principal, r = annual rate, t = time in yearsNet Present Value CalculatorNPV = -C₀ + Σ(Cₜ / (1+r)ᵗ)Present Value CalculatorFV = PV × (1 + r)^tFuture Value CalculatorFV = PV × (1 + r)^tTime Value Of Money CalculatorFV = PV × (1 + r)^tInternal Rate Of Return CalculatorFV = PV × (1 + r)^tROI CalculatorROI = (Gain − Cost) / Cost × 100%CAGR CalculatorCAGR = (Ending Value / Beginning Value)^(1/n) − 1DCF CalculatorFV = PV × (1 + r)^tIntrinsic Value CalculatorFV = PV × (1 + r)^tROA CalculatorFV = PV × (1 + r)^tRoic CalculatorFV = PV × (1 + r)^tROS CalculatorFV = PV × (1 + r)^tReal Rate Of Return CalculatorFV = PV × (1 + r)^tContinuous Compound CalculatorFV = PV × (1 + r)^tAnnuity Future Value CalculatorFV = PV × (1 + r)^tSalary To Hourly CalculatorHourly Rate = Annual Salary / (Hours Per Week × Weeks Per Year)Hourly To Salary CalculatorAnnual Salary = Hourly Rate × Hours/Week × Weeks/YearMortgage CalculatorM = P[r(1+r)^n] / [(1+r)^n − 1], where P = loan amount, r = monthly rate, n = total paymentsMargin CalculatorMargin = (Selling Price − Cost) / Selling Price × 100%Markup CalculatorMarkup = (Selling Price − Cost) / Cost × 100%Marginal Cost CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Marginal Revenue CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Labor Cost CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Cobb Douglas Production Function CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Avc CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Operating Cash Flow CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Free Cash Flow CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Levered Free Cash Flow CalculatorBreakeven = Fixed Costs / (Price − Variable Cost)Discount CalculatorSale Price = Original Price × (1 − Discount%/100)Sales Tax CalculatorTax = Price × Tax Rate / 100GST CalculatorTax = Taxable Income × Tax RatePaypal Fee CalculatorTax = Taxable Income × Tax RateFinance Charge CalculatorTax = Taxable Income × Tax RateAPR CalculatorTax = Taxable Income × Tax RateTrump Tax CalculatorTax = Taxable Income × Tax RateHRA Exemption CalculatorTax = Taxable Income × Tax RatePost Judgment Interest CalculatorTax = Taxable Income × Tax RateCPM CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000CTR CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000CPC CPM CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000ROAS CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000Online Marketing ROI CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000Google Adsense CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000Website Ad Revenue CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000Youtube Money CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000CAC CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000Bounce Rate CalculatorCTR = (clicks/impressions)×100%, CPC = spend/clicks, CPM = (spend/impressions)×1000Pre And Post Money Valuation CalculatorValue = Revenue × Multiplier, Adjusted = Value × (1 + g)Arv CalculatorValue = Revenue × Multiplier, Adjusted = Value × (1 + g)Actual Cash Value CalculatorValue = Revenue × Multiplier, Adjusted = Value × (1 + g)Economic Value Added CalculatorValue = Revenue × Multiplier, Adjusted = Value × (1 + g)Profitability Index CalculatorValue = Revenue × Multiplier, Adjusted = Value × (1 + g)Payback Period CalculatorValue = Revenue × Multiplier, Adjusted = Value × (1 + g)Car Depreciation CalculatorAnnual Depreciation = (Cost − Salvage) / Useful LifeDepreciation CalculatorAnnual Depreciation = (Cost − Salvage) / Useful LifeAppreciation CalculatorAnnual Depreciation = (Cost − Salvage) / Useful LifeCar Affordability CalculatorAnnual Depreciation = (Cost − Salvage) / Useful LifeGold Melt CalculatorAnnual Depreciation = (Cost − Salvage) / Useful LifeScrap Gold CalculatorAnnual Depreciation = (Cost − Salvage) / Useful LifeScrap Silver CalculatorAnnual Depreciation = (Cost − Salvage) / Useful LifeInventory Turnover CalculatorTurnover = COGS / Avg Inventory, EOQ = √(2DS/H)Ending Inventory CalculatorTurnover = COGS / Avg Inventory, EOQ = √(2DS/H)EOQ CalculatorTurnover = COGS / Avg Inventory, EOQ = √(2DS/H)Lifo For Inventories CalculatorTurnover = COGS / Avg Inventory, EOQ = √(2DS/H)Fifo For Inventories CalculatorTurnover = COGS / Avg Inventory, EOQ = √(2DS/H)Sell Through Rate CalculatorTurnover = COGS / Avg Inventory, EOQ = √(2DS/H)Immediate Annuity CalculatorPMT = PV × r / (1 − (1+r)^(−n)), PV = PMT × (1 − (1+r)^(−n)) / rLottery Annuity CalculatorPMT = PV × r / (1 − (1+r)^(−n)), PV = PMT × (1 − (1+r)^(−n)) / rSinking Fund CalculatorPMT = PV × r / (1 − (1+r)^(−n)), PV = PMT × (1 − (1+r)^(−n)) / rPowerball CalculatorPMT = PV × r / (1 − (1+r)^(−n)), PV = PMT × (1 − (1+r)^(−n)) / rMega Millions Payout CalculatorPMT = PV × r / (1 − (1+r)^(−n)), PV = PMT × (1 − (1+r)^(−n)) / rVelocity Of Money CalculatorSpeed = Distance / TimeRevenue Growth CalculatorGrowth = (Current − Previous) / Previous × 100, CAGR = (End/Start)^(1/n) − 1Year Over Year Growth CalculatorGrowth = (Current − Previous) / Previous × 100, CAGR = (End/Start)^(1/n) − 1Inflation CalculatorGrowth = (Current − Previous) / Previous × 100, CAGR = (End/Start)^(1/n) − 1Revenue Per Employee CalculatorGrowth = (Current − Previous) / Previous × 100, CAGR = (End/Start)^(1/n) − 1Productivity CalculatorGrowth = (Current − Previous) / Previous × 100, CAGR = (End/Start)^(1/n) − 1Turnover Rate CalculatorGrowth = (Current − Previous) / Previous × 100, CAGR = (End/Start)^(1/n) − 1Credit Card Payoff CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentCoupon Rate CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentCoupon Payment CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentBasis Point CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentBlended Rate CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentEquivalent Rate CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentBill Rate CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentDart Rate CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentLgd CalculatorMonths = −ln(1 − B×r/P) / ln(1+r), where B=balance, r=monthly rate, P=paymentBusiness Budget CalculatorAmount = Income × Category %70 20 10 Rule Money CalculatorAmount = Income × Category %Savings Plan CalculatorAmount = Income × Category %Millionaire CalculatorAmount = Income × Category %Money Counter CalculatorAmount = Income × Category %Cell Phone Plan CalculatorAmount = Income × Category %Expected Utility CalculatorAmount = Income × Category %Buying Power CalculatorAmount = Income × Category %Sip India CalculatorFV = PV × (1 + r)^tVa Disability CalculatorFV = PV × (1 + r)^tLease CalculatorFV = PV × (1 + r)^tADR CalculatorFV = PV × (1 + r)^tLTV CalculatorFV = PV × (1 + r)^tSales CalculatorFV = PV × (1 + r)^tRetained Earnings CalculatorFV = PV × (1 + r)^tOccupancy Rate CalculatorFV = PV × (1 + r)^tCash Back CalculatorFV = PV × (1 + r)^t

Math (79)

Circumference CalculatorC = 2πr = πd, where r is radius and d is diameterArea Of A Circle CalculatorA = πr², where r is the radiusCircle Formula CalculatorA = πr², C = 2πrCircle CalculatorA = πr², C = 2πrCircumference To Diameter CalculatorA = πr², C = 2πrRadius Of A Circle CalculatorA = πr², C = 2πrSector Area CalculatorA = πr², C = 2πrArc Length CalculatorA = πr², C = 2πrSemicircle Area CalculatorA = πr², C = 2πrQuarter Circle Area CalculatorA = πr², C = 2πrTriangle Area CalculatorA = ½ × base × heightTriangle 45 45 90 CalculatorArea = ½ × base × heightTriangle 30 60 90 CalculatorArea = ½ × base × heightIsosceles Triangle CalculatorArea = ½ × base × heightEquilateral Triangle CalculatorArea = ½ × base × heightRight Triangle CalculatorArea = ½ × base × heightRight Triangle Side Angle CalculatorArea = ½ × base × heightHypotenuse CalculatorArea = ½ × base × heightPythagorean Theorem Calculatora² + b² = c², so c = √(a² + b²)Triangle Height CalculatorArea = ½ × base × heightHerons Formula CalculatorArea = ½ × base × heightTrigonometry CalculatorArea = ½ × base × heightRectangle CalculatorArea = length × width, Perimeter = 2(l + w), Diagonal = √(l² + w²)Square Area CalculatorArea = s², Perimeter = 4s, Diagonal = s√2Hexagon CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nOctagon CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nPentagon CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nHeptagon CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nDodecagon Area CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nRegular Polygon Perimeter CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nStar Shape CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nIrregular Polygon Area CalculatorA = (n × s²) / (4 tan(π/n)), interior angle = (n−2)×180/nCylinder Volume CalculatorV = πr²h, Surface Area = 2πr(r + h)Sphere Volume CalculatorV = ⁴⁄₃πr³, Surface Area = 4πr²Area CalculatorArea = Length × WidthCross Sectional Area CalculatorArea = Length × WidthQuadratic Formula Calculatorx = (−b ± √(b² − 4ac)) / 2aSlope Calculatorm = (y₂ − y₁) / (x₂ − x₁)Fraction Calculatora/b + c/d = (ad + bc) / bdSimplify Fractions Calculatora/b + c/d = (ad + bc) / bdEquivalent Fractions Calculatora/b + c/d = (ad + bc) / bdCommon Denominator Calculatora/b + c/d = (ad + bc) / bdArithmetic Sequence Calculatoraₙ = a₁ + (n−1)d, Sₙ = n/2 × (2a₁ + (n−1)d)Geometric Sequence Calculatoraₙ = a₁ + (n−1)d, Sₙ = n/2 × (2a₁ + (n−1)d)Sequence Calculatoraₙ = a₁ + (n−1)d, Sₙ = n/2 × (2a₁ + (n−1)d)Sum Of Linear Number Sequence Calculatoraₙ = a₁ + (n−1)d, Sₙ = n/2 × (2a₁ + (n−1)d)Doubling Time Calculatoraₙ = a₁ + (n−1)d, Sₙ = n/2 × (2a₁ + (n−1)d)Average CalculatorMean = (x₁ + x₂ + ... + xₙ) / nPercentage CalculatorPercentage = (Value / Total) × 100Ratio Of 2 Numbers CalculatorAmount = Base × Rate / 100Ratio Of 3 Numbers CalculatorAmount = Base × Rate / 100Golden Ratio CalculatorAmount = Base × Rate / 100Percent Time CalculatorAmount = Base × Rate / 100Vector Calculator|V| = √(x²+y²), A·B = x₁x₂ + y₁y₂Unit Vector Calculator|V| = √(x²+y²), A·B = x₁x₂ + y₁y₂Vector Magnitude Calculator|V| = √(x²+y²), A·B = x₁x₂ + y₁y₂Vector Addition Calculator|V| = √(x²+y²), A·B = x₁x₂ + y₁y₂Matrix Rank Calculator|V| = √(x²+y²), A·B = x₁x₂ + y₁y₂Unit Circle Calculatorradians = degrees × π/180Reference Angle Calculatorradians = degrees × π/180Coterminal Angle Calculatorradians = degrees × π/180Sin Degrees Calculatorradians = degrees × π/180Clock Angle Calculatorradians = degrees × π/180Midpoint Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Distance Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Parabola Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Ellipse Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Segment Addition Postulate Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Ratios Of Directed Line Segments Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Average Rate Of Change Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Least Squares Regression Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Scatter Plot Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Graphing Inequalities 1d Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Inequality To Interval Notation Calculatord = √((x₂−x₁)² + (y₂−y₁)²), midpoint = ((x₁+x₂)/2, (y₁+y₂)/2), slope = (y₂−y₁)/(x₂−x₁)Pascals Triangle CalculatorGCD × LCM = |a × b|Twos Complement CalculatorGCD × LCM = |a × b|Standard Form CalculatorGCD × LCM = |a × b|Order Of Magnitude CalculatorGCD × LCM = |a × b|Partial Products CalculatorGCD × LCM = |a × b|

Conversion (60)

In To Cm Calculator1 inch = 2.54 cmCm To M Calculator1 cm = 0.01 mKilometers To Miles Calculator1 km = 0.621371 miMeters To Feet Calculator1 m = 3.28084 ftFeet To Miles Calculator1 mile = 5,280 feetMm To Inches Conversion Calculator1 mm = 0.03937 inchesFoot To Centimeter Converter Calculator1 ft = 30.48 cmInch To Meter Calculator1 in = 0.0254 mMile Conversion CalculatorSpeed = Distance / TimeCm To Mm Conversion Calculator1 cm = 10 mmG To Oz Calculator1 g = 0.035274 ozMcg To Mg Calculator1 mcg = 0.001 mgKg To Lbs Converter Calculator1 kg = 2.20462 lbsLbs To Kg Converter Calculator1 lb = 0.453592 kgKg To Ounce Converter Calculator1 kg = 35.274 ozOunces To Grams Converter Calculator1 oz = 28.3495 gOunces To Pounds Converter Calculator1 oz = 0.0625 lbsPounds To Ounces Converter Calculator1 lb = 16 ozKg To Stones Converter Calculator1 kg = 0.157473 stStone To Kg Calculator1 stone = 6.35029 kgLbs To G Calculator1 lb = 453.592 gMl To Oz Converter Calculator1 mL = 0.033814 fl ozOz Ml Converter Calculator1 fl oz = 29.5735 mLMl To Cups Calculator1 mL ≈ 0.00423 cupsCups To Oz Calculator1 cup = 8 fl ozPints To Cups Converter Calculator1 pint = 2 cupsCups To Pints Converter Calculator1 cup = 0.5 pintsGallons To Quarts Converter Calculator1 gal = 4 qtQuarts To Gallons Converter Calculator1 qt = 0.25 galVolume Conversion CalculatorVolume = Length × Width × HeightCubic Feet CalculatorVolume = Length × Width × HeightL To Gal Calculator1 L = 0.264172 galGallon CalculatorVolume = Length × Width × HeightMonths To Years Calculator1 month = 1/12 yearDays To Years Calculator1 day ≈ 0.00274 yearsDays To Weeks Calculator1 day = 1/7 weekHours To Days Calculator1 hour = 1/24 dayMinutes To Hours Converter Calculator1 min = 1/60 hrSeconds To Minutes Converter Calculator1 sec = 1/60 minPennies To Dollars Calculator1 penny = $0.01Nickels To Dollars Calculator1 nickel = $0.05Dimes To Dollars Calculator1 dime = $0.10Cents To Dollars Calculator1 cent = $0.01Pixels To Inches Calculator1 px = 1/96 in at 96 PPIMbps To Gbps Calculator1 Mbps = 0.001 GbpsMb To Gb Converter Calculator1 MB = 1/1024 GBNm To Ft Lb Calculator1 N·m = 0.737562 ft·lbLbs To Newton Calculator1 lbf = 4.44822 NBar To Psi Conversion Calculator1 bar = 14.5038 psiKnots To Mph Calculator1 knot = 1.15078 mphKnots To Kph Calculator1 knot = 1.852 km/hMs To Kmh Calculator1 m/s = 3.6 km/hMillion To Billion Calculator1 million = 0.001 billionCrore To Million Calculator1 crore = 10 millionAcreage CalculatorArea = Length × WidthHectares To Acres Converter Calculator1 ha = 2.47105 acresAcres To Square Feet Converter Calculator1 acre = 43,560 sq ftPPM Calculator1 ppm = 0.0001%Power Conversion CalculatorP = V × I, V = I × RGrams To Calories Calculator1 g fat = 9 calories

Health (49)

BMI Women CalculatorBMI = (weight in lbs × 703) / (height in inches)²BMI Men CalculatorBMI = (weight in lbs × 703) / (height in inches)²BMI Kids CalculatorBMI = (weight in lbs × 703) / (height in inches)² — then compared to age/sex percentile chartsBody Fat CalculatorMen: %BF = 86.010 × log10(waist − neck) − 70.041 × log10(height) + 36.76 Women: %BF = 163.205 × log10(waist + hip − neck) − 97.684 × log10(height) − 78.387Army Body Fat CalculatorArmy Body Fat formula uses height, weight, and demographic dataNavy Body Fat CalculatorNavy Body Fat formula uses height, weight, and demographic dataLean Body Mass CalculatorMen: LBM = 0.407W + 0.267H − 19.2 Women: LBM = 0.252W + 0.473H − 48.3 (Boer formula)Body Water CalculatorBody Water formula uses height, weight, and demographic dataFFMI CalculatorFFMI = Fat-Free Mass / Height² (in meters)BAI CalculatorBai formula uses height, weight, and demographic dataSkinfold Body Fat CalculatorSkinfold Body Fat formula uses height, weight, and demographic dataBody Shape CalculatorBody Shape formula uses height, weight, and demographic dataFace Shape CalculatorFace Shape formula uses height, weight, and demographic dataBody Frame Size CalculatorBody Frame Size formula uses height, weight, and demographic dataPonderal Index CalculatorPonderal Index formula uses height, weight, and demographic dataBSA CalculatorBsa formula uses height, weight, and demographic dataMaintenance Calorie CalculatorMaintenance = BMR × Activity FactorBMR CalculatorMifflin-St Jeor: Men: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5 Women: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age − 161BMR Harris Benedict Equation CalculatorMifflin-St Jeor: 10 × weight(kg) + 6.25 × height(cm) − 5 × age ± offsetBMR Katch Mcardle CalculatorMifflin-St Jeor: 10 × weight(kg) + 6.25 × height(cm) − 5 × age ± offsetRMR CalculatorMifflin-St Jeor: 10 × weight(kg) + 6.25 × height(cm) − 5 × age ± offsetTDEE CalculatorTDEE = BMR × Activity MultiplierCalorie CalculatorMifflin-St Jeor equation multiplied by activity factorCalorie Deficit CalculatorDaily Deficit = (Pounds to Lose × 3,500) / (Weeks × 7)Eer Estimated Energy Requirement CalculatorMifflin-St Jeor: 10 × weight(kg) + 6.25 × height(cm) − 5 × age ± offsetBee CalculatorMifflin-St Jeor: 10 × weight(kg) + 6.25 × height(cm) − 5 × age ± offsetProtein CalculatorDaily Protein = Body Weight × Goal FactorMacro CalculatorProtein: 4 cal/g, Carbs: 4 cal/g, Fat: 9 cal/gWater Intake CalculatorWater (oz) = Body Weight (lbs) × Activity FactorIdeal Weight CalculatorDevine: Men: 50kg + 2.3kg per inch over 5' Women: 45.5kg + 2.3kg per inch over 5'Child Weight Percentile CalculatorAmount = Base × Rate / 100Child Height Percentile CalculatorAmount = Base × Rate / 100Mean Arterial Pressure CalculatorMAP = Diastolic + (Systolic − Diastolic) / 3Vital Capacity CalculatorVolume = Length × Width × HeightLung Capacity CalculatorVolume = Length × Width × HeightUrine Output CalculatorCrCl = ((140 − age) × weight × [0.85 if female]) / (72 × Cr)URR CalculatorCrCl = ((140 − age) × weight × [0.85 if female]) / (72 × Cr)Kt V CalculatorCrCl = ((140 − age) × weight × [0.85 if female]) / (72 × Cr)Sodium Deficit CalculatorCrCl = ((140 − age) × weight × [0.85 if female]) / (72 × Cr)Corrected Calcium CalculatorCrCl = ((140 − age) × weight × [0.85 if female]) / (72 × Cr)Pediatric Glomerular Filtration Rate CalculatorCrCl = ((140 − age) × weight × [0.85 if female]) / (72 × Cr)Transferrin CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100Iron Deficiency CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100Free Testosterone CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100Eosinophil Count CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100ANC CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100Lymphocyte Count CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100ACR CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100Plasma Volume CalculatorMCH = Hb/RBC × 10, MCHC = Hb/Hct × 100

Statistics (33)

Mean Median Mode CalculatorMean = Σx/n, Median = middle value, Mode = most frequent valueStandard Deviation Calculatorσ = √(Σ(xᵢ − μ)² / N) for population, s = √(Σ(xᵢ − x̄)² / (n−1)) for sampleVariance Calculatorσ² = Σ(xᵢ − μ)² / N (population), s² = Σ(xᵢ − x̄)² / (n−1) (sample)Range CalculatorRange = Maximum − MinimumIQR CalculatorIQR = Q3 − Q1Midrange CalculatorMidrange = (Max + Min) / 2Quartile CalculatorQ1 = median of lower half, Q2 = median, Q3 = median of upper halfPercentile CalculatorPercentile Rank = (Number of values below x / Total values) × 100Relative Standard Deviation Calculator%RSD = (σ / |μ|) × 100Median CalculatorFor odd n: median = x₍₍ₙ₊₁₎/₂₎. For even n: median = (x₍ₙ/₂₎ + x₍ₙ/₂₊₁₎) / 2Probability CalculatorP(A) = Number of favorable outcomes / Total number of outcomesZ Score Calculatorz = (x̄ − μ) / (σ/√n)P Value Calculatorz = (x̄ − μ) / (σ/√n)T Test Calculatorz = (x̄ − μ) / (σ/√n)T Statistic Calculatorz = (x̄ − μ) / (σ/√n)Critical Value Calculatorz = (x̄ − μ) / (σ/√n)Degrees Of Freedom Calculatorz = (x̄ − μ) / (σ/√n)Confidence Interval Calculatorz = (x̄ − μ) / (σ/√n)Ab Test Calculatorz = (x̄ − μ) / (σ/√n)Sensitivity And Specificity Calculatorz = (x̄ − μ) / (σ/√n)Combination CalculatorC(n,r) = n! / (r!(n-r)!), P(n,r) = n! / (n-r)!Possible Combinations CalculatorC(n,r) = n! / (r!(n-r)!), P(n,r) = n! / (n-r)!Password Combination CalculatorC(n,r) = n! / (r!(n-r)!), P(n,r) = n! / (n-r)!Dice CalculatorC(n,r) = n! / (r!(n-r)!), P(n,r) = n! / (n-r)!D100 Dice Roller CalculatorC(n,r) = n! / (r!(n-r)!), P(n,r) = n! / (n-r)!Lottery CalculatorC(n,r) = n! / (r!(n-r)!), P(n,r) = n! / (n-r)!Spearmans Rank Correlation Calculatorslope = r × σy/σx, intercept = ȳ − slope × x̄Matthews Correlation Coefficient Calculatorslope = r × σy/σx, intercept = ȳ − slope × x̄Point Estimate Calculatorslope = r × σy/σx, intercept = ȳ − slope × x̄Sample Size Calculatorn = z² × p(1−p) / E²Accuracy Calculatorn = z² × p(1−p) / E²Normal Probability Sampling Distributions Calculatorn = z² × p(1−p) / E²Exponential Growth Prediction Calculatorn = z² × p(1−p) / E²

Chemistry (22)

Molarity CalculatorM = moles of solute / liters of solutionMolality CalculatorC = n/V (concentration = moles / volume)Concentration CalculatorC = n/V (concentration = moles / volume)Solution Dilution CalculatorC = n/V (concentration = moles / volume)Serial Dilution CalculatorC = n/V (concentration = moles / volume)Normality CalculatorC = n/V (concentration = moles / volume)PPM To Molarity CalculatorC = n/V (concentration = moles / volume)Ionic Strength CalculatorC = n/V (concentration = moles / volume)Reconstitution CalculatorC = n/V (concentration = moles / volume)Mixing Ratio CalculatorC = n/V (concentration = moles / volume)Percent Yield CalculatorAmount = Base × Rate / 100PH CalculatorpH = −log₁₀[H⁺]Titration CalculatorAmount = Base × Rate / 100Isoelectric Point CalculatorP = V × I, V = I × RHalf Life CalculatorN(t) = N₀ × (½)^(t/t½)Boiling Point Altitude CalculatorΔTb = i × Kb × m, ΔTf = i × Kf × mFreezing Point Depression CalculatorΔTb = i × Kb × m, ΔTf = i × Kf × mPartial Pressure CalculatorForce = Pressure × AreaVapor Pressure CalculatorForce = Pressure × AreaVapour Pressure Of Water CalculatorForce = Pressure × AreaOsmotic Pressure CalculatorForce = Pressure × AreaStandard Temperature And Pressure CalculatorForce = Pressure × Area

Sports (19)

Walking Calorie CalculatorCalories = Weight(kg) × MET × HoursRunning Calorie CalculatorCalories = Weight(kg) × MET × HoursSwimming Calorie CalculatorCalories = Weight(kg) × MET × HoursCalories Burned CalculatorCalories = Weight(kg) × MET × HoursCalories Burned Weight Lifting CalculatorCalories = Weight(kg) × MET × HoursJump Rope Calorie CalculatorCalories = Weight(kg) × MET × HoursStairs Calorie CalculatorCalories = Weight(kg) × MET × HoursBurpee Calorie CalculatorCalories = Weight(kg) × MET × HoursSauna Calories Burned CalculatorCalories = Weight(kg) × MET × HoursSteps To Calories CalculatorCalories = Weight(kg) × MET × HoursPace CalculatorPace = Total Time / Distance5k Pace CalculatorSpeed = Distance / TimeMarathon Pace CalculatorSpeed = Distance / TimeBench Press Calculator1RM = Weight × (1 + Reps/30)One Rep Max Calculator1RM = Weight × (1 + Reps/30)Wilks Calculator1RM = Weight × (1 + Reps/30)Hull Speed CalculatorSpeed = Distance / TimeFishing Reel Line Capacity CalculatorVolume = Length × Width × HeightWinning Percentage CalculatorAmount = Base × Rate / 100

Construction (16)

Concrete Slab CalculatorVolume = Length × Width × (Thickness/12), then divide by 27 for cubic yardsSquare Footage CalculatorArea = Length × WidthGravel Driveway CalculatorSpeed = Distance / TimePipe Volume CalculatorVolume = Length × Width × HeightGallons Per Minute CalculatorVolume = Length × Width × HeightLiters Per Minute CalculatorVolume = Length × Width × HeightFence CalculatorArea = L × W, Volume (cu yd) = L × W × (depth in ft) / 27Pool CalculatorArea = L × W, Volume (cu yd) = L × W × (depth in ft) / 27French Drain CalculatorArea = L × W, Volume (cu yd) = L × W × (depth in ft) / 27Elevation Grade CalculatorArea = L × W, Volume (cu yd) = L × W × (depth in ft) / 27Ramp Slope CalculatorArea = L × W, Volume (cu yd) = L × W × (depth in ft) / 27Vertical Curve CalculatorArea = L × W, Volume (cu yd) = L × W × (depth in ft) / 27Landscaping Plants CalculatorArea = L × W, Volume (cu yd) = L × W × (depth in ft) / 27Tank Volume CalculatorVolume = Length × Width × HeightCubic Yard CalculatorVolume = Length × Width × HeightGallons Per Square Foot CalculatorVolume = Length × Width × Height

Other (14)

Aspect Ratio CalculatorAspect Ratio = Width:Height (simplified by GCD)16 9 Aspect Ratio CalculatorAmount = Base × Rate / 10016 10 Aspect Ratio CalculatorAmount = Base × Rate / 1004 3 Aspect Ratio CalculatorAmount = Base × Rate / 100Portrait Aspect Ratio CalculatorAmount = Base × Rate / 100Image Ratio CalculatorAmount = Base × Rate / 100Tv Size Distance CalculatorSpeed = Distance / TimeMusic Duration CalculatorAmount = Base × Rate / 100Download Time CalculatorTime = File Size (MB) × 8 / Speed (Mbps)Test Grade CalculatorScore = (Correct / Total) × 100%Aquarium Volume CalculatorVolume = Length × Width × HeightTip CalculatorTip = Bill × Tip% / 100Battery Capacity CalculatorVolume = Length × Width × HeightLatitude Longitude Distance CalculatorSpeed = Distance / Time

Everyday Life (12)

Day Counter CalculatorDays = |End Date − Start Date|Age CalculatorAge = Current Date − Birth DateSpeed CalculatorSpeed = Distance / TimeDrive Time CalculatorSpeed = Distance / TimeGas CalculatorGallons = Distance / MPG, Cost = Gallons × PriceBoost Horsepower CalculatorP = V × I, V = I × RElectricity Cost CalculatorCost = (Watts × Hours × Days) / 1000 × Rate per kWhGas Vs Electric Dryer CalculatorP = V × I, V = I × RReading Speed CalculatorSpeed = Distance / TimeTv Series Duration CalculatorAmount = Base × Rate / 100Expiration Date CalculatorAmount = Base × Rate / 100Dilution Ratio CalculatorAmount = Base × Rate / 100

Food (4)

Coffee To Water Ratio CalculatorCoffee (g) = Water (mL) / RatioAlcohol By Volume CalculatorVolume = Length × Width × HeightPizza Party CalculatorPizzas = ⌈(Guests × Slices Per Person) / Slices Per Pizza⌉Taco Bar CalculatorForce = Pressure × Area

Biology (3)

Protein Concentration CalculatorAmount = Base × Rate / 100Vapor Pressure Deficit CalculatorForce = Pressure × AreaTurtle Tank CalculatorVolume = Length × Width × Height

Business (1)

Business Markup CalculatorAmount = Base × Rate / 100