Unit Converter
Convert length, weight, temperature, speed, area, and volume — all in one place.
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About the Unit Converter
Unit conversion is needed in everyday situations — cooking with a foreign recipe, understanding weather forecasts while travelling, calculating fuel efficiency, or reading product specifications from another country. Our converter handles the six most commonly needed conversion categories.
Supported categories
- Length — metres, kilometres, miles, feet, inches, nautical miles, and more
- Weight — kilograms, grams, pounds, ounces, stone, tonnes
- Temperature — Celsius, Fahrenheit, Kelvin
- Speed — m/s, km/h, mph, knots, ft/s
- Area — square metres, hectares, acres, square feet, square miles
- Volume — litres, millilitres, gallons, cups, fluid ounces, tablespoons
Quick reference conversions
Each category includes preset quick-conversion buttons for the most commonly searched conversions. Click any preset to load the values instantly — no typing required.
Frequently Asked Questions
How do I convert kilometres to miles?
Select the Length category, choose km as the From unit and mi as the To unit, then enter your value. 1 kilometre = 0.621371 miles. You can also click the '1 km → mi' quick preset button.
How do I convert Celsius to Fahrenheit?
Select Temperature, choose °C as From and °F as To. The formula is (°C × 9/5) + 32. For example, 100°C = 212°F (boiling point of water).
How do I convert kg to pounds?
Select Weight, choose kg as From and lb as To. 1 kilogram = 2.20462 pounds. Enter any value and the result updates instantly.
Can I convert in both directions?
Yes — you can type in either the From or To field and the other updates automatically. You can also click the swap button to reverse the conversion direction.
What unit systems are supported?
All major metric (SI) and imperial/US customary units are supported across all six categories: length, weight, temperature, speed, area, and volume.