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Conversion Tools

36 tools

Acres to Hectares ConverterConversion · Convert international acres to hectares and square metres.

Acres to Square Feet ConverterConversion · Convert international acres to square feet and square metres.

Angle Conversion CalculatorConversion · Convert between degrees, radians and gradians.

Angstrom to nm ConverterConversion · Convert angstroms, nanometres, and thousandths of an inch through an exact metre base.

Area ConverterConversion · Efficiently convert between hectare, square meter, square foot and more.

Astronomical Unit CalculatorConversion · Convert distances between the astronomical unit and common astronomy and metric scales.

ATM ConversionConversion · Convert pressure between standard atmospheres, bar, psi, pascals, and torr.

atm to Pascals ConversionConversion · Convert standard atmospheres to pascals and kilopascals using 1 atm = 101325 Pa.

Bar to ATM ConversionConversion · Convert pressure between bar, standard atmospheres, and pascals.

bar to psi ConversionConversion · Convert pressure between bar and psi.

Billion to Trillion ConverterConversion · Convert numbers between billion, trillion, full-number, and scientific notation forms.

Byte Conversion CalculatorConversion · Convert between bytes, kilobytes, megabytes, gigabytes and more.

Capacitance ConverterConversion · Convert capacitance between F, mF, uF, nF, and pF.

cc to Grams ConverterConversion · Convert cubic centimeters to grams using density tables for common ingredients.

CCF to Gallons ConversionConversion · Convert hundred cubic feet (CCF) to US gallons.

Celsius ConverterConversion · Convert Celsius to Fahrenheit, Kelvin, and other temperature scales.

Centimeters to Feet and Inches ConverterConversion · Convert a length in centimeters to feet and inches.

Conversion CalculatorConversion · Convert values across supported temperature, length, weight, and other units.

Day ConverterConversion · Convert a duration between days and common time units using a 365.25-day year.

Distance ConverterConversion · Convert common metric, imperial, and nautical distance units.

Energy Conversion CalculatorConversion · Convert joules, calories, watt-hours and other energy units.

Height ConverterConversion · Convert height between centimeters, meters, feet, and inches.

Hour ConverterConversion · Convert a duration between hours and common time units using consistent average month and year definitions.

Hours to Minutes ConverterConversion · Convert hours to minutes and seconds.

Hours to Seconds ConverterConversion · Convert hours to seconds and other time units using exact conversion factors.

Imperial to Metric ConversionConversion · Convert temperature, length, area, volume, and weight between imperial and metric units.

Length ConverterConversion · Convert meters, centimeters, feet, inches and more.

Minute ConverterConversion · Convert a duration between minutes and common time units using consistent average month and year definitions.

Power ConverterConversion · Convert watts, kilowatts, horsepower and more.

Pressure ConversionConversion · Convert pascals, bar, atmospheres, psi and more.

psi to Inches of Water ConversionConversion · Convert pressure between psi, inches of water, and pascals.

Speed ConversionConversion · Convert km/h, m/s, mph and other speed units.

Temperature ConversionConversion · Convert Celsius, Fahrenheit, Kelvin and more.

Time Unit ConverterConversion · Convert years, months, weeks, days, hours, minutes and seconds.

Volume ConversionConversion · Convert milliliters, liters, gallons, cups and more.

Weight ConverterConversion · Convert milligrams, grams, kilograms, pounds, ounces and more.

About this category

Conversion tools express the same quantity in another unit, scale, or notation. They make values easier to compare across measurement systems while preserving what the original number represents.

Common use cases

Translate measurements between regional, scientific, technical, or everyday unit systems.
Normalize values from different sources before comparing, recording, or calculating with them.

How to choose a tool

Identify the physical quantity first, then choose the exact source and target units. Similar unit names may represent different dimensions or regional definitions, and temperature or data units may require more than a simple multiplication.

Limits and checks

Rounding can accumulate when converted values are reused, and historical or industry-specific units may not match modern definitions. Keep the original measurement and enough significant digits when accuracy matters.