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Unit Converter

Convert length, area, volume, weight, temperature, speed, pressure, energy, power, data, time, angle and fuel economy, including Chinese units.

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The same value in every unit

UnitValue

How to convert a unit

  1. Pick a category — length, weight, temperature, data, fuel economy and nine more.
  2. Type the value and choose the unit you are converting from; the result updates as you type, and ⇄ swaps the two sides.
  3. Scroll to the table underneath to see the same quantity expressed in every unit of that category at once.

FAQ

Are Chinese units included?

Yes. 里, 丈, 尺 and 寸 for length, 亩 and 顷 for area, and 斤, 两, 钱 and 担 for weight, all using the modern metric definitions — one 斤 is exactly 500 g and one 亩 is 666.67 m².

Why do the US and UK gallons differ?

They are genuinely different volumes: a US gallon is 3.785 L, an imperial gallon is 4.546 L. That is also why miles per gallon figures from American and British sources cannot be compared directly, and why this tool lists both.

How exact are the results?

Conversions use the internationally defined factors (an inch is exactly 25.4 mm, a pound exactly 0.45359237 kg). Display is rounded to the number of significant digits you choose, so raise it if you need more precision.

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