Calculators
Math, health, education, finance, and construction calculators to help you crunch the numbers that matter.
Math Calculators(50)
Basic CalculatorScientific CalculatorFraction CalculatorPercentage CalculatorPercentage Increase CalculatorPercentage Decrease CalculatorRatio CalculatorProportion CalculatorAverage CalculatorMean CalculatorMedian CalculatorMode CalculatorStandard Deviation CalculatorVariance CalculatorProbability CalculatorCombination CalculatorPermutation CalculatorFactorial CalculatorPrime Number CalculatorPrime Factorization CalculatorGCF CalculatorLCM CalculatorLong Division CalculatorDecimal to Fraction CalculatorFraction to Decimal CalculatorFraction SimplifierFraction to Percentage CalculatorPercentage to Fraction CalculatorExponent CalculatorLogarithm CalculatorSquare Root CalculatorCube Root CalculatorPower CalculatorMatrix CalculatorDeterminant CalculatorMatrix Inverse CalculatorMatrix Multiplication CalculatorPolynomial CalculatorQuadratic Equation CalculatorEquation SolverInequality SolverAbsolute Value CalculatorRounding CalculatorSignificant Figures CalculatorNumber Sequence CalculatorRandom Number CalculatorBinary CalculatorHex CalculatorOctal CalculatorRoman Numeral Converter
Geometry Calculators(14)
Health & Fitness Calculators(47)
BMI CalculatorBMR CalculatorTDEE CalculatorBody Fat CalculatorLean Body Mass CalculatorIdeal Weight CalculatorHealthy Weight CalculatorCalorie CalculatorCalories Burned CalculatorProtein Intake CalculatorWater Intake CalculatorDaily Fat Intake CalculatorCarb Intake CalculatorMacro CalculatorWaist-to-Hip Ratio CalculatorBody Surface Area CalculatorHeart Rate CalculatorTarget Heart Rate CalculatorRunning Pace CalculatorWalking Pace CalculatorCycling Pace CalculatorSwimming Pace CalculatorOne Rep Max CalculatorVO₂ Max CalculatorBody Frame Size CalculatorWaist-to-Height Ratio CalculatorSleep CalculatorPregnancy Due Date CalculatorOvulation CalculatorPregnancy Weight Gain CalculatorBaby Growth Percentile CalculatorChild Height PredictorBlood Volume CalculatorHydration CalculatorBasal Energy CalculatorBody Water Percentage CalculatorFitness Age CalculatorBody Shape CalculatorMuscle Gain CalculatorWeight Loss CalculatorArmy Body Fat CalculatorBody Type CalculatorPregnancy CalculatorPregnancy Conception CalculatorPeriod CalculatorGFR CalculatorBAC Calculator
Education Calculators(20)
GPA CalculatorCGPA CalculatorGrade CalculatorFinal Grade CalculatorPercentage CalculatorAttendance CalculatorMarks Percentage CalculatorWeighted Grade CalculatorAverage Grade CalculatorStudy Time CalculatorReading Time CalculatorSpeaking Time CalculatorExam Score CalculatorClass Rank CalculatorCredit Hour CalculatorGPA Improvement CalculatorSemester GPA CalculatorOverall GPA CalculatorTest Grade CalculatorHomework Grade Calculator
Date & Time Calculators(11)
Business Calculators(17)
Profit CalculatorMarkup CalculatorVAT CalculatorSales Tax CalculatorGST CalculatorBreak-even CalculatorCommission CalculatorSalary CalculatorHourly Wage CalculatorGross Profit CalculatorNet Profit CalculatorGold Price CheckerSilver Price CheckerZakat & Ushr CalculatorLoan / EMI CalculatorTip CalculatorFuel Cost Calculator
Construction Calculators(7)
Engineering & Physics Calculators(10)
US Tax Calculators(32)
Federal Income Tax CalculatorState Income Tax CalculatorFederal & State Tax CalculatorFICA Tax CalculatorSelf-Employment Tax CalculatorEffective Tax Rate CalculatorMarginal Tax Rate CalculatorStandard Deduction CalculatorCapital Gains Tax CalculatorShort-Term Capital Gains Tax CalculatorDividend Tax CalculatorChild Tax Credit CalculatorEITC CalculatorSocial Security Tax CalculatorMedicare Tax CalculatorNIIT CalculatorPaycheck CalculatorHourly Paycheck CalculatorBonus Tax CalculatorQuarterly Estimated Tax CalculatorFreelancer Tax CalculatorUS Sales Tax CalculatorProperty Tax CalculatorHome Sale Tax CalculatorEarly Withdrawal Penalty CalculatorRetirement Withdrawal Tax CalculatorEstate Tax CalculatorGift Tax CalculatorTax Refund EstimatorW4 Withholding CalculatorAMT CalculatorStandard vs Itemized Deduction Calculator