Unit converter

U.S. dollars and units

Convert common U.S. and metric units for length, weight, volume, speed and temperature.

Instant calculation

Convert any unit

Measurement typeValueinFromTo

Calculation resultUpdates instantly

result2.54 cm

Result details

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Inside the result

Updates as you change the inputs

in → cm (1)2.54 cm

cm → in (1)0.39 in

Value in the base unit0.03 m

Estimates do not replace official quotes or professional advice.

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HOW IT WORKS

Choose a measurement type, starting unit and target unit. The conversion updates immediately and includes useful reverse and base-unit references.

The converter includes U.S. gallons, miles, feet, inches, pounds and ounces.
Temperature conversions use the standard Fahrenheit, Celsius and Kelvin formulas.
Volume and weight are different quantities; converting between them requires density.

FREQUENTLY ASKED QUESTIONS

Are the gallons U.S. gallons?+

Yes. The gallon option in this converter is the U.S. liquid gallon.

Can I convert cups to pounds?+

Not with a unit-only conversion, because the answer depends on the ingredient density.