SwiftCalculate

All Calculators

Explore all 45 implemented calculators. Browse date and time tools, math calculators, and everyday planning tools in one directory.

Date Calculators 8

Date Difference CalculatorFind days between datesDays Between DatesFind calendar day spansDays From NowAdd days to a dateDays AgoSubtract days from a dateWeeksCompare dates by weeksMonthsCompare dates by monthsQuartersCompare date ranges by quartersYearsCompare dates by years

Date Offset Tools 6

Weeks From NowAdd weeks to a dateWeeks AgoSubtract weeks from a dateMonths From NowAdd months to a dateMonths AgoSubtract months from a dateYears From NowAdd years to a dateYears AgoSubtract years from a date

Time Calculators 6

TimeFind time between two timesAdd TimeAdd time to a clock valueSubtract TimeSubtract time from a clock valueMultiply TimeScale a duration upwardDivide TimeDivide a duration evenly24-Hour FormatConvert 12-hour and 24-hour time

Date & Time Formatting 7

Time From NowAdd hours and minutes to a dateTime AgoSubtract hours and minutes from a dateSeconds From NowAdd seconds to a date and timeSeconds AgoSubtract seconds from a date and timeMinutes From NowAdd minutes to a date and timeMinutes AgoSubtract minutes from a date and timeDate FormatterFormat a calendar date

Percentage & Number Tools 5

Percentage CalculatorCalculate a percentage of a valuePercent ChangeFind increase or decreasePercentage Based on Two NumbersFind percent from part and totalLeast Common MultipleFind the least common multipleNumber RoundingRound a number to fixed precision

Geometry Calculators 6

Area of a CircleCalculate circle areaCircumference of a CircleCalculate circle circumferenceArea of a RectangleCalculate rectangle areaPerimeter of a RectangleCalculate rectangle perimeterArea of a SquareCalculate square areaPerimeter of a SquareCalculate square perimeter

Health & Movement 4

BMI CalculatorEstimate BMI from height and weightStepsConvert steps to distanceSpeed and TimeEstimate distance from speed and timeWater WeightEstimate water weight

Travel & Serving 3

Gas CostEstimate trip fuel costWine VolumeConvert wine volume to servingsBeer VolumeConvert beer volume to cans

Why Use All Calculators?

SwiftCalculate groups every calculator into readable sections so visitors can open the full directory from the top navigation and choose a tool without an extra category detour.

100% FreeNo sign-up required Accurate ResultsReliable calculations Easy to UseSimple and fast Works AnywhereDesktop & mobile

Last updated: May 19, 2026 • 45 calculators in this directory