Unit Converter
Convert units instantly for cooking, travel, work and study. Choose a category, enter an amount, and see the result, the formula and quick conversions for other units in the same category. No sign-up is needed.
Unit Converter
Instant conversions for everyday use — cooking, travel, work, and study. Pick a category to start.
- 1 inch = 2.54 cm • 1 mile = 1.609 km
- 1 kg = 2.205 lb • 1 litre = 0.264 US gal
- 0°C = 32°F • 1 Mbps file sizes use MB/GB above
Frequently asked questions about the Unit Converter
Which categories are supported?
Length, weight, temperature, volume, area, speed and data storage. Each category has its own set of units, from metres and miles to Celsius and Fahrenheit.
How are temperature conversions calculated?
Temperature is not a simple multiplication, so the tool converts through Celsius first: for example, Fahrenheit to Celsius subtracts 32 and multiplies by 5/9, then converts to the target unit.
Can I swap the from and to units?
Yes. Use the Swap button between the two unit selectors to reverse the conversion without retyping the amount.
Is the converter free?
Yes. Every conversion on this page is free and runs entirely in your browser.
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