Universal Conversion Tool

Instantly convert between 193+ measurement units across 30 categories. Free, fast, and accurate.

100% Free Instant Results 195+ Units

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Length

Temperature

Weight

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All Conversions

Length

inch → centimeter centimeter → inch foot → meter meter → foot mile → kilometer kilometer → mile +2 more

Weight

pound → kilogram kilogram → pound ounce → gram gram → ounce stone → pound carat → gram

Temperature

celsius → fahrenheit fahrenheit → celsius kelvin → celsius celsius → kelvin kelvin → fahrenheit rankine → celsius

Volume

gallon → liter liter → gallon cup → milliliter milliliter → cup fluid-ounce → milliliter pint → liter +1 more

Time

second → minute minute → hour hour → day day → week week → month month → year +3 more

Data Size

bit → byte byte → kilobyte kilobyte → megabyte megabyte → gigabyte gigabyte → terabyte

Data Rate

bit-per-second → byte-per-second byte-per-second → bit-per-second kilobit-per-second → megabit-per-second megabit-per-second → gigabit-per-second kilobyte-per-second → megabyte-per-second megabyte-per-second → gigabyte-per-second

Area

square-foot → square-meter square-meter → square-foot acre → hectare hectare → acre square-inch → square-centimeter square-yard → square-meter

Speed

kilometer-per-hour → mile-per-hour mile-per-hour → kilometer-per-hour meter-per-second → kilometer-per-hour kilometer-per-hour → meter-per-second foot-per-second → meter-per-second meter-per-second → foot-per-second +2 more

Pressure

bar → psi psi → bar atmosphere → bar kilopascal → psi mmhg → atmosphere

Energy

calorie → joule kilocalorie → kilojoule watt-hour → joule kilowatt-hour → kilocalorie btu → joule

Shoe Size

us-mens → uk-mens us-mens → eu-mens us-womens → uk-womens us-womens → eu-womens uk-mens → us-mens eu-mens → us-mens +4 more

Ring Size

us → uk us → eu us → japan uk → us eu → us

Clothing Size

us → uk us → eu kids → us uk → us eu → us

Number Base

binary → decimal decimal → binary hexadecimal → decimal decimal → hexadecimal binary → hexadecimal octal → decimal

Frequency

hertz → kilohertz kilohertz → megahertz megahertz → gigahertz rpm → hertz bpm → hertz hertz → rpm

Angle

degree → radian radian → degree degree → gradian gradian → degree turn → degree degree → turn

Power

watt → horsepower horsepower → watt kilowatt → horsepower horsepower → kilowatt watt → horsepower-metric horsepower-metric → watt +2 more

Cooking Measurements

teaspoon → tablespoon tablespoon → cup-us cup-us → pint-us pint-us → quart-us fluid-ounce-us → cup-us cup-us → milliliter-cooking +4 more

Fuel Efficiency

mpg-us → l-per-100km l-per-100km → mpg-us mpg-us → mpg-imperial mpg-imperial → mpg-us km-per-liter → mpg-us mpg-us → km-per-liter +1 more

Torque

newton-meter → foot-pound foot-pound → newton-meter newton-meter → inch-pound inch-pound → newton-meter foot-pound → inch-pound kilogram-meter → newton-meter

Electrical Units

ampere → milliampere milliampere → ampere volt → millivolt millivolt → volt ohm → kilohm kilohm → megohm +2 more

Density

kg-per-cubic-meter → g-per-cubic-cm g-per-cubic-cm → kg-per-cubic-meter kg-per-cubic-meter → lb-per-cubic-foot lb-per-cubic-foot → kg-per-cubic-meter g-per-liter → kg-per-cubic-meter lb-per-cubic-inch → g-per-cubic-cm +1 more

Roman Numerals

decimal → roman roman → decimal

Large Numbers

number → thousand number → million number → billion thousand → million million → billion billion → trillion

Circle

radius → diameter radius → circumference radius → area diameter → radius diameter → circumference diameter → area +3 more

Percentage

decimal → percentage percentage → decimal percentage → basis-points basis-points → percentage decimal → basis-points percentage → parts-per-million

Tip Calculator

bill-amount → with-15-percent-tip bill-amount → with-18-percent-tip bill-amount → with-20-percent-tip bill-amount → tip-15-percent bill-amount → tip-18-percent bill-amount → tip-20-percent +4 more

Dog Years

human-years → dog-years dog-years → human-years

Prime Number

number → is-prime number → next-prime number → previous-prime