Unit Converter
Convert between units of length, weight, temperature, volume, speed, and time instantly. Free, fast, and accurate.
Result
Free Online Unit Converter
Convert between metric and imperial units in seconds. Our unit converter supports 6 categories with over 40 different units — from kilometers to miles, kilograms to pounds, and Celsius to Fahrenheit.
Supported Conversions
- Length: meters, km, cm, mm, miles, yards, feet, inches
- Weight: kg, grams, mg, pounds, ounces, tonnes
- Temperature: Celsius, Fahrenheit, Kelvin
- Volume: liters, mL, gallons, cups, fl oz, tablespoons, teaspoons
- Speed: m/s, km/h, mph, knots
- Time: seconds, minutes, hours, days, weeks
How to Use
- Select a category (Length, Weight, Temperature, etc.)
- Choose the units you want to convert from and to
- Enter a value and click Convert
- Use the swap button to reverse the conversion
Why Use Our Converter?
All calculations happen instantly in your browser. No data is sent to any server, no sign-up is required, and it works perfectly on mobile devices. Bookmark it for quick access anytime you need a conversion.