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Unit Converter

Length, weight, temperature, volume, area, speed and data.
Free, no sign-up Runs instantly in your browser Nothing leaves your device For everyone, students

Unit Converter

Instant

Guide

How to use the Unit Converter

  1. 1

    Choose the type of unit.

  2. 2

    Enter a value and pick the units.

  3. 3

    See every conversion at once.

Expert tip

What you should know

Quick mental checks: 1 inch ≈ 2.54 cm, 1 kg ≈ 2.2 lb, 1 mile ≈ 1.6 km, 1 litre ≈ 0.26 US gallons. A sanity check like this catches most conversion mistakes.

FAQ

Frequently asked questions

How do I convert Celsius to Fahrenheit?+

Multiply by 9/5 and add 32. 25 °C = 77 °F.