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Unit converter

Type a value, pick its unit and instantly see its equivalent in every other unit of the category: metric, imperial and US customary. Click any result to copy it.

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How can I verify this?

Your files are never uploaded: they are processed on your device. Check it yourself: load the page, turn off your WiFi and the tool keeps working. Or open your browser’s developer tools (F12), go to the Network tab, and see that no file leaves your device.

Equivalents

Ctrl + Enter runCtrl + C copy result

How to use

  1. 1Choose the category: length, weight, temperature, area, volume, speed, time, data, pressure or energy.
  2. 2Type the value (dot or comma decimals) and select its unit.
  3. 3See all equivalents at once.
  4. 4Click a result to copy it or share a link to the conversion.

Use cases

  • Convert recipes from cups and ounces to milliliters and grams.
  • Switch miles, feet and inches to metric when traveling or shopping online.
  • Understand the real capacity of drives and memory (GB vs GiB).
  • Convert tire pressure (psi to bar) or electricity use (kWh).

Frequently asked questions

Why does a 1 TB drive show less space on my computer?

Manufacturers use decimal units (1 TB = 10¹² bytes) while many operating systems display binary units (1 TiB = 2⁴⁰ bytes). That is why 1 TB shows up as about 931 GiB.

How do you convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32: 25 °C = 25 × 1.8 + 32 = 77 °F. To go from Fahrenheit to Celsius, subtract 32 and multiply by 5/9.

What is the difference between a US and a UK gallon?

A US gallon is 3.785 liters and an imperial (UK) gallon is 4.546 liters. The converter includes both.

How long is a mile exactly?

A statute mile is exactly 1,609.344 meters. The nautical mile, used in shipping and aviation, is 1,852 meters.

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