Unit Converter

Length, weight and temperature — pick a category and convert between any two units instantly.

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Conversions people use most

Frequently asked questions

How many kilometers in a mile?

1 mile = 1.609344 km. Miles → km: multiply by 1.609. Km → miles: multiply by 0.621.

How many pounds in a kilogram?

1 kg = 2.20462 lb, and 1 lb = 0.45359 kg. A tola (gold unit in South Asia) is 11.664 grams.

How do I convert Celsius to Fahrenheit?

°F = °C × 9/5 + 32, so 25 °C = 77 °F. Reverse: °C = (°F − 32) × 5/9.