📐 Free Unit Converter

Convert length, weight, temperature, speed, area, volume and data storage. Instant results with full reference tables.

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Quick Reference
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Frequently Asked Questions

1 mile = 1.60934 kilometers. Conversely, 1 kilometer = 0.62137 miles. The US and UK primarily use miles while most of the world uses kilometers.
Multiply by 9/5 then add 32. Formula: °F = (°C × 1.8) + 32. Example: 100°C = (100 × 1.8) + 32 = 212°F (boiling point of water).
1 kilogram = 2.20462 pounds. 1 pound = 0.453592 kilograms. The US uses pounds while most countries use kilograms.
Primarily the United States, along with a few territories. Most other countries use Celsius. Scientific applications worldwide use Kelvin.

Free Unit Converter — Length, Weight, Temperature and More

Convert between metric and imperial units instantly. Enter any value and get the result in all related units at once, with a full reference table for common conversions. All conversions run in your browser — no server, no upload, no account needed.