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Unit Converter

Convert common length, weight, and volume measurements with one simple calculator.

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Unit Converter

Up to 12 significant digits; very small or large results use scientific notation. Signed values and zero are supported. US cups, gallons and fluid ounces are customary liquid measures, not Imperial or nutrition-label measures. Ounces under Weight are avoirdupois mass, not fluid or troy ounces. Processing stays in your browser.

Meters to Feet3.28083989501

Feet

HOW IT WORKS

Use the unit converter in seconds

Choose length, weight (mass) or volume, enter a value and select two units. Results display up to 12 significant digits; scientific notation keeps tiny nonzero values visible rather than rounding them to zero. Blank, invalid and out-of-range input suppresses the result. International feet/inches/miles, avoirdupois pounds/ounces and US customary liquid cups/gallons/fluid ounces are used. Imperial, troy and nutrition-label measures are not included. Signed values and zero are supported; numerical output is rounded and does not imply measurement accuracy.

WORKED EXAMPLE

Unit Converter: an example

One US gallon equals 128 US fluid ounces. A result of 1e-9 means 0.000000001, not zero.

FREQUENTLY ASKED QUESTIONS

Unit Converter FAQ

Which measurements are supported?

The tool includes common length, weight, and volume units.

How accurate are the conversions?

The tool uses standard conversion factors and ordinary floating-point arithmetic, displaying up to 12 significant digits. Small or large results use scientific notation; this display precision does not establish the accuracy of an original measurement.

Are fluid ounces the same as ounces of weight?

No. US fluid ounces measure volume; avoirdupois ounces measure mass. US cups and gallons here are customary liquid measures, not Imperial or nutrition-label measures. Converting volume to mass requires density and is not supported.

Can I convert in either direction?

Yes. Select any supported unit as the starting or target unit.

COMMON USES

What you can do with this tool

01

Convert miles and kilometers

02

Convert pounds and kilograms

03

Convert gallons, liters, cups, and fluid ounces

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