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209 tools across 10 categories
209 tools
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PercentageFind a percentage, work backwards, or measure a percentage change.Three calculation modes↗Percentage ChangeMeasure an increase or decrease.Live chart & table↗Average & StatisticsAnalyse a complete dataset: mean, median, spread, and frequency.Full statistical summary↗PowerRaise a number to an exponent.Live chart & table↗Square RootFind the principal square root.Live chart & table↗RatioCompare two quantities as a ratio.Live chart & table↗Circle AreaCalculate area from a radius.Live chart & table↗Triangle AreaCalculate area from base and height.Live chart & table↗Pythagorean TheoremFind the hypotenuse of a right triangle.Live chart & table↗Cylinder VolumeFind the volume of a cylinder.Live chart & table↗Loan EMISee every repayment, explore extra payments, and understand your total interest.Prepayment planner↗MortgageSee every repayment, explore extra payments, and understand your total interest.Prepayment planner↗Compound InterestExplore contributions, compounding and the difference time can make.Step-up & growth planner↗Simple InterestCalculate interest on a principal amount.Live chart & table↗SIPExplore contributions, compounding and the difference time can make.Step-up & growth planner↗Return on InvestmentCompare profit with your initial cost.Live chart & table↗DiscountFind the price after a discount.Live chart & table↗Sales Tax / GSTAdd a tax rate to a price.Live chart & table↗Profit MarginFind profit as a share of revenue.Live chart & table↗InflationEstimate a future equivalent cost.Live chart & table↗BMICalculate adult BMI with a clear breakdown and a weight comparison.Metric & imperial↗Running PaceFind your average pace per kilometre.Live chart & table↗Race TimeEstimate time from pace and distance.Live chart & table↗Protein EnergyConvert grams of protein to food energy.Live chart & table↗Date DifferenceCount the days between two dates.Calendar breakdown↗AgeFind completed years on a chosen date.Calendar breakdown↗Hours to MinutesConvert hours into minutes.Live chart & table↗Days to WeeksExpress a number of days in weeks.Live chart & table↗Length ConverterConvert metric length to feet.Multi-unit converter↗Weight ConverterConvert kilograms into pounds.Multi-unit converter↗Temperature ConverterConvert temperatures to Fahrenheit.Multi-unit converter↗Fahrenheit to CelsiusConvert temperatures to Celsius.Multi-unit converter↗Miles to KilometresConvert a distance into kilometres.Multi-unit converter↗Litres to US GallonsConvert a liquid volume to US gallons.Multi-unit converter↗Acres to Square MetresConvert land area to square metres.Multi-unit converter↗Bytes to MegabytesConvert bytes to decimal megabytes.Multi-unit converter↗SpeedFind speed from distance and time.Live chart & table↗DensityFind mass per unit volume.Live chart & table↗Ohm’s LawCalculate current from voltage and resistance.Live chart & table↗Kinetic EnergyFind energy from mass and speed.Live chart & table↗ForceCalculate force from mass and acceleration.Live chart & table↗Tip & Bill SplitSplit a bill, including the tip.Tip & split comparison↗Fuel CostEstimate fuel costs for a journey.Trip cost planner↗Electricity CostEstimate an appliance’s running cost.Live chart & table↗Unit PriceCompare the cost per unit.Live chart & table↗Paint QuantityEstimate paint needed for a wall area.Coverage & waste planner↗Flooring AreaAllow for waste when buying flooring.Live chart & table↗Concrete VolumeEstimate concrete for a rectangular slab.Live chart & table↗Wall AreaCalculate a rectangular wall’s area.Live chart & table↗Fixed Deposit (FD)Estimate FD maturity value and compound-interest growth.Quarterly compounding↗Recurring Deposit (RD)Project the maturity value of regular monthly deposits.Monthly maturity projection↗PPF MaturityEstimate Public Provident Fund growth from annual contributions.15-year projection↗Lump Sum InvestmentProject how a one-time investment may compound over time.Compound growth↗CAGRFind the annualised growth rate between two values.Annualised return↗SWP DurationEstimate how long a portfolio can support fixed monthly withdrawals.Withdrawal sustainability↗Goal SIPCalculate the monthly investment required for a future target.Reverse goal planner↗Emergency FundSet an emergency-fund target from essential monthly expenses.Savings safety net↗GratuityEstimate gratuity from eligible salary and completed service.Service benefit estimate↗HRA ExemptionCompare the three common limits used for HRA exemption.Three-limit comparison↗Take-home SalaryEstimate monthly take-home pay after annual deductions.Monthly salary estimate↗Personal Loan EMICalculate personal-loan EMI, total interest and repayment schedule.Repayment schedule↗Car Loan EMIPlan vehicle-loan EMI, interest and optional prepayments.Vehicle-loan planner↗Education Loan EMIEstimate education-loan EMI and the full interest schedule.Education repayment plan↗Home Loan PrepaymentSee how extra payments may shorten a home loan and reduce interest.Interest-saving comparison↗Reverse GSTRemove GST from a tax-inclusive amount.Tax-inclusive price↗Break-even PointFind the unit sales needed to cover fixed and variable costs.Business planning↗MarkupCalculate markup percentage from cost and selling price.Markup vs margin↗Sales CommissionCalculate percentage commission plus an optional fixed amount.Sales earnings↗CGPA to PercentageConvert CGPA using the multiplier specified by your institution.Institution-adjustable↗Attendance RequiredFind how many future classes you must attend to reach a target.Target attendance planner↗Savings RateFind the percentage of income you save.Live graph & table↗Debt-to-Income RatioCompare monthly debt payments with gross income.Live graph & table↗Loan-to-Value RatioCompare a loan balance with an asset value.Live graph & table↗Credit Card Payoff TimeEstimate months to repay a card with fixed payments.Live graph & table↗Debt Payoff TimeEstimate months to clear a balance.Live graph & table↗Emergency Savings CoverageSee how many months your cash reserve covers.Live graph & table↗Retirement CorpusEstimate the corpus needed from annual spending and withdrawal rate.Live graph & table↗Retirement Monthly SavingEstimate the monthly investment required for a target.Live graph & table↗Future ValueProject one lump sum forward.Live graph & table↗Present ValueDiscount a future amount to today.Live graph & table↗Annuity Future ValueProject equal end-of-period deposits.Live graph & table↗Annuity Present ValueValue equal future payments today.Live graph & table↗Real ReturnAdjust a nominal return for inflation.Live graph & table↗Rule of 72Estimate how long money takes to double.Live graph & table↗Rental YieldCompare annual rent with property value.Live graph & table↗Capitalisation RateCompare net operating income with property value.Live graph & table↗BMREstimate resting daily energy use.Live graph & table↗TDEEEstimate total daily energy expenditure.Live graph & table↗Body Fat EstimateEstimate adult body fat from BMI and age.Live graph & table↗Ideal Weight EstimateEstimate reference weight from height.Live graph & table↗Healthy Weight Lower BoundFind the lower adult BMI reference weight for a height.Live graph & table↗Healthy Weight Upper BoundFind the upper adult BMI reference weight for a height.Live graph & table↗Waist-to-Height RatioCompare waist circumference with height.Live graph & table↗Waist-to-Hip RatioCompare waist and hip circumferences.Live graph & table↗Lean Body MassEstimate lean mass from body weight and body-fat percentage.Live graph & table↗Protein TargetCalculate protein from body weight and a chosen factor.Live graph & table↗Water Intake EstimateEstimate daily water from body weight.Live graph & table↗Target Heart RateEstimate a training heart rate using heart-rate reserve.Live graph & table↗One-Rep MaxEstimate one-repetition maximum from a set.Live graph & table↗Calories BurnedEstimate exercise energy from MET, weight and time.Live graph & table↗Body Surface AreaEstimate body surface area with the Mosteller formula.Live graph & table↗Pregnancy Days RemainingEstimate days remaining in a 40-week pregnancy.Live graph & table↗Scientific Notation ExponentFind the base-10 exponent of a non-zero number.Live graph & table↗Fraction to DecimalConvert a fraction to decimal form.Live graph & table↗Fraction AdditionAdd two fractions.Live graph & table↗Quadratic Positive RootFind the plus-sign root of ax² + bx + c.Live graph & table↗SlopeFind the slope between two points.Live graph & table↗Coordinate DistanceFind distance between two points.Live graph & table↗LogarithmCalculate a logarithm with a chosen base.Live graph & table↗FactorialCalculate n factorial.Live graph & table↗PermutationCount ordered selections of r items from n.Live graph & table↗CombinationCount unordered selections of r items from n.Live graph & table↗Probability PercentageConvert favourable and total outcomes into a percentage.Live graph & table↗Percent ErrorCompare an observed value with an accepted value.Live graph & table↗Z-ScoreStandardise a value using a mean and standard deviation.Live graph & table↗Margin of ErrorEstimate a mean margin of error.Live graph & table↗Sample Size for ProportionEstimate sample size for a proportion.Live graph & table↗Greatest Common DivisorFind the greatest common divisor of two integers.Live graph & table↗Least Common MultipleFind the least common multiple of two integers.Live graph & table↗Prime Number CheckReturn 1 for prime and 0 for not prime.Live graph & table↗Time DurationCalculate minutes between two clock times.Live graph & table↗Hours and Minutes to DecimalConvert hours and minutes to decimal hours.Live graph & table↗Minutes to HoursConvert minutes to decimal hours.Live graph & table↗Seconds to MinutesConvert seconds to decimal minutes.Live graph & table↗Working Days EstimateEstimate workdays after weekends and holidays.Live graph & table↗Work HoursCalculate total work hours across days.Live graph & table↗Overtime HoursFind hours above a regular threshold.Live graph & table↗Time Zone ShiftShift a clock hour between UTC offsets.Live graph & table↗Area ConverterConvert area converter between common units.Multi-unit converter↗Volume ConverterConvert volume converter between common units.Multi-unit converter↗Mass ConverterConvert mass converter between common units.Multi-unit converter↗Data Storage ConverterConvert data storage converter between common units.Multi-unit converter↗Pressure ConverterConvert pressure into kilopascals.Live graph & table↗Energy ConverterConvert energy into kilowatt-hours.Live graph & table↗Power ConverterConvert power into watts.Live graph & table↗Speed ConverterConvert speed into kilometres per hour.Live graph & table↗Tile QuantityEstimate tiles including waste.Live graph & table↗Roofing AreaAdjust plan area for roof pitch.Live graph & table↗Gravel VolumeEstimate gravel volume for a rectangular area.Live graph & table↗Mulch VolumeEstimate mulch needed for a bed.Live graph & table↗Stair Step CountEstimate the number of risers.Live graph & table↗Wallpaper RollsEstimate wallpaper rolls including waste.Live graph & table↗Gross ProfitSubtract cost of goods from revenue.Live graph & table↗Operating MarginMeasure operating income as a share of revenue.Live graph & table↗Net Profit MarginMeasure net profit as a share of revenue.Live graph & table↗Break-even RevenueFind revenue needed to cover fixed costs at a contribution margin.Live graph & table↗Inventory TurnoverCompare annual cost of goods with average inventory.Live graph & table↗Receivables DaysEstimate average collection time.Live graph & table↗Earnings per ShareDivide profit available to ordinary shareholders by shares.Live graph & table↗Price-to-Earnings RatioCompare share price with earnings per share.Live graph & table↗PaymentFind a regular payment for a financed amount.Interactive graph & table↗Annuity PayoutEstimate a level monthly payout from a balance.Interactive graph & table↗College CostProject education costs after inflation.Interactive graph & table↗Certificate of Deposit (CD)Estimate maturity value of a fixed-term deposit.Interactive graph & table↗Bond Current YieldCompare annual coupon income with bond price.Interactive graph & table↗Mutual Fund ReturnMeasure return after contributions and withdrawals.Interactive graph & table↗Cash Back vs Low InterestCompare cashback with estimated interest savings.Interactive graph & table↗Auto LeaseEstimate a monthly vehicle lease payment.Interactive graph & table↗DepreciationCalculate annual straight-line depreciation.Interactive graph & table↗Average ReturnFind the arithmetic average of annual returns.Interactive graph & table↗Trading Margin RequirementEstimate cash required for a leveraged position.Interactive graph & table↗Business LoanEstimate a business-loan monthly payment.Interactive graph & table↗Boat LoanEstimate a boat-loan monthly payment.Interactive graph & table↗Refinance SavingsEstimate gross interest savings from refinancing.Interactive graph & table↗Monthly BudgetFind money left after monthly expenses.Interactive graph & table↗Rental Property Cash FlowEstimate monthly property cash flow.Interactive graph & table↗Payback PeriodEstimate how long an investment takes to repay.Interactive graph & table↗Down PaymentCalculate the upfront amount from a percentage.Interactive graph & table↗Rent vs Buy Break-evenCompare annual rent with ownership costs.Interactive graph & table↗Percent OffCalculate sale price after a percentage discount.Interactive graph & table↗Calorie Goal AdjustmentAdjust maintenance calories for a daily goal.Interactive graph & table↗Carbohydrate TargetConvert a calorie share into grams of carbohydrate.Interactive graph & table↗Fat IntakeConvert a calorie share into grams of fat.Interactive graph & table↗Army Body Fat EstimateEstimate body-fat percentage from circumference measurements.Interactive graph & table↗eGFREstimate kidney filtration using the 2021 CKD-EPI creatinine equation.Interactive graph & table↗Blood Alcohol ConcentrationEstimate BAC from alcohol, body weight and time.Interactive graph & table↗Overweight AmountCompare current weight with a selected reference weight.Interactive graph & table↗Fraction SubtractionSubtract one fraction from another.Interactive graph & table↗Fraction MultiplicationMultiply two fractions.Interactive graph & table↗Fraction DivisionDivide one fraction by another.Interactive graph & table↗Cube RootFind the real cube root of a number.Interactive graph & table↗Nth RootFind the nth root of a positive number.Interactive graph & table↗Rectangular Prism VolumeCalculate volume from length, width and height.Interactive graph & table↗Sphere VolumeCalculate the volume of a sphere.Interactive graph & table↗Cone VolumeCalculate the volume of a cone.Interactive graph & table↗Arithmetic Sequence SumFind the sum of an arithmetic sequence.Interactive graph & table↗Half-lifeCalculate the amount remaining after elapsed half-lives.Interactive graph & table↗Quadratic Negative RootFind the second real root of a quadratic equation.Interactive graph & table↗Circle CircumferenceCalculate circumference from radius.Interactive graph & table↗Sphere Surface AreaCalculate the surface area of a sphere.Interactive graph & table↗RoundingRound a number to selected decimal places.Interactive graph & table↗Long Division QuotientCalculate the quotient of two numbers.Interactive graph & table↗GPACalculate GPA from four course grade points.Interactive graph & table↗Weighted GradeCalculate a weighted score from two components.Interactive graph & table↗Voltage DropEstimate conductor voltage drop.Interactive graph & table↗BTU HeatingEstimate hourly heating requirement from area.Interactive graph & table↗Square FootageCalculate rectangular area in square feet.Interactive graph & table↗Gas MileageCalculate fuel efficiency.Interactive graph & table↗HorsepowerConvert torque and RPM to horsepower.Interactive graph & table↗Series ResistorFind total resistance in a series circuit.Interactive graph & table↗MolarityCalculate solution molarity.Interactive graph & table↗Molecular Weight from MassFind molar mass from sample mass and amount.Interactive graph & table↗Golf Handicap DifferentialCalculate a single-round handicap differential.Interactive graph & table↗Sleep DurationCalculate sleep hours across midnight.Interactive graph & table↗Tire DiameterEstimate tyre diameter from metric size.Interactive graph & table↗Wind ChillEstimate perceived temperature from wind.Interactive graph & table↗Heat IndexEstimate apparent temperature in hot, humid conditions.Interactive graph & table↗Dew PointEstimate dew point from temperature and humidity.Interactive graph & table↗Bandwidth Transfer TimeEstimate transfer time from data size and connection speed.Interactive graph & table↗
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