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Calculators

Find a tool for text, code, calculations, images or network information.

33 tools

Activity Calorie EstimateEstimate activity energy from a chosen MET value, body weight and time.Adult BMI CalculatorCalculate BMI from kilograms and centimetres using adult screening categories.Age CalculatorCalculate completed years and elapsed days at a chosen date.Area ConverterConvert area values using explicitly named units.Bandwidth & Data Usage CalculatorEstimate transferred data from a sustained transfer speed and active usage time.Compound Interest CalculatorCalculate compound growth with an optional contribution at the end of each compounding period.Daily Water Goal PlannerTranslate your chosen total-water goal into a beverage amount and glass count.Data Transfer Rate ConverterConvert transfer values using explicitly named units.Days Between DatesCalculate elapsed calendar days between two dates without daylight-saving shifts.Digital Storage ConverterConvert storage values using explicitly named units.Discount CalculatorCalculate the savings and final price after a percentage discount.Download Time CalculatorEstimate ideal transfer duration.GST, VAT & Sales Tax CalculatorAdd a tax rate or extract tax already included in a price.Length ConverterConvert length values using explicitly named units.Loan Payment CalculatorCalculate a fixed monthly payment from principal, annual interest and a positive term.Number to WordsWrite signed numbers and decimal digits in English words.Online StopwatchMeasure elapsed time with pause, resume, reset and laps.Percentage CalculatorCalculate a percentage of a value, a ratio, a percentage change or an adjusted total.Pomodoro Focus TimerRun a focus or break countdown with pause, resume and reset.Random Integer GeneratorGenerate random whole numbers with an optional no-repeat setting.Reading Time CalculatorEstimate reading duration using an adjustable reading speed.Roman Numeral ConverterConvert whole numbers 1–3999 to standard Roman numerals, or convert numerals back.Scientific CalculatorEvaluate arithmetic, powers, factorials and supported scientific functions.Semester GPA CalculatorCalculate a credit-weighted GPA using the displayed 4.0 scale.Sleep Schedule EstimateCalculate a bedtime from a wake time and explicit cycle-length assumptions.Speed ConverterConvert speed values using explicitly named units.Temperature ConverterConvert temperature values using explicitly named units.Time ConverterConvert time values using explicitly named units.Tip CalculatorCalculate a tip and divide the total between people.Trip Fuel Cost CalculatorEstimate fuel use and cost from distance, consumption and price.Unit ConverterConvert length, weight, temperature, speed, time and data units.Volume ConverterConvert volume values using explicitly named units.Weight ConverterConvert weight values using explicitly named units.