📐 Unit Converter
Convert between different units of measurement.
🔒 100% client-side processing
Unit conversion comes up constantly: a recipe calls for ounces while your scale shows grams, a spec sheet lists inches while your tape measure is metric, or a flight’s speed is given in knots. This converter handles over 50 units across 8 categories — length, weight, temperature, volume, area, speed, time, and data — and shows the result instantly as you type, with no page reloads and no sign-up.
How Unit Conversion Works
Most conversions are simple ratios. Every unit in a category is defined by its relationship to a single base unit — meters for length, kilograms for weight, and so on. Converting from one unit to another means multiplying by the source factor and dividing by the target factor. One mile is exactly 1609.344 meters, so miles to kilometers is just multiplying by 1.609344.
Temperature is the exception. Because the Celsius, Fahrenheit, and Kelvin scales have different zero points, they cannot be converted with a single multiplier. Converting Celsius to Fahrenheit requires the formula F = C × 9/5 + 32, and Kelvin starts at absolute zero (−273.15 °C). The tool applies these offset formulas automatically, so you never have to remember them.
How to Use
- Select category: Choose from length, weight, temperature, etc.
- Choose units: Select source and target units
- Enter value: Type the number to convert
- View result: See the converted value instantly
Features
- 8 categories: length, weight, temperature, volume, area, speed, time, data
- 50+ units supported
- Real-time conversion
- Swap units with one click
Use Cases
Home cooks convert cups and ounces when following recipes from other countries. Travelers check distances, temperatures, and fuel economy in unfamiliar units. Students verify physics and chemistry homework, while engineers and developers convert file sizes, transfer speeds, and measurements in technical documents. The data category is especially handy when comparing storage plans quoted in GB, GiB-adjacent figures, and megabits per second.
Related Tools
Frequently Asked Questions
How many units are supported?
Over 50 units across 8 categories including length, weight, temperature, and more.
Is the conversion accurate?
Yes, calculations use high-precision floating-point arithmetic for accurate results.
How is temperature conversion different?
Unlike most units, Celsius, Fahrenheit, and Kelvin do not share a zero point, so conversion uses offset formulas rather than a simple multiplication factor.
Can I convert between metric and imperial units?
Yes, every category mixes metric and imperial units, so you can convert miles to kilometers, pounds to kilograms, or gallons to liters directly.