Unit converter

Instant conversions with context

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Frequently asked questions
What units can I convert?
You can convert length (metres, feet, miles, km), weight (kg, lb, oz), temperature (Celsius, Fahrenheit, Kelvin), speed (km/h, mph, knots), volume (litres, gallons, cups) and area (sq metres, acres, hectares).
How do I reverse a conversion?
Use the swap button (⇄) between the two fields to instantly reverse the conversion direction.
Are the conversions accurate?
Yes — all conversions use internationally recognised conversion factors. Results are calculated to high precision and rounded for display.
Can I share a conversion result?
Yes — use the "Copy link" button to copy a URL that encodes your exact conversion, which you can share with anyone.
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About this tool

This unit converter handles length, weight, temperature, speed, volume and area. Conversions update instantly as you type. Use the swap button to reverse the conversion direction. Results are shareable via the copy link button — the URL encodes your exact conversion so you can send it to anyone.