Unit Converter
Convert between units of Length, Weight/Mass, Temperature, Area, Volume, Speed, and Time in one combined converter.
Result
3.28084
How to Use This Unit Converter
Pick a category — Length, Weight/Mass, Temperature, Area, Volume, Speed, or Time — then choose the unit you're converting from and the unit you want to convert to. Enter a value and the converted result updates instantly. Use the swap button to quickly reverse the conversion direction.
Temperature is handled differently from the other categories, since Celsius, Fahrenheit, and Kelvin aren't related by a simple multiplication factor — this converter applies the correct formula for each pair automatically.
Example
Converting 1 meter to feet gives 3.2808 ft. Converting 100°C (boiling point of water) to Fahrenheit gives 212°F, and to Kelvin gives 373.15 K.
Common Use Cases
- Converting recipe measurements between metric and US customary units.
- Converting a weather temperature reading between Celsius and Fahrenheit.
- Converting distances, speeds, or land area between metric and imperial systems for travel, fitness, or real estate.
FAQs
Why does temperature need special formulas instead of a simple factor?
Celsius, Fahrenheit, and Kelvin scales don't share a common zero point, so converting between them requires both a multiplication and an addition or subtraction step (like °F = °C × 9/5 + 32), unlike length or weight, which convert with a single multiplication factor.
How accurate are the conversion factors used?
The conversion factors used (for example, 1 inch = 2.54 cm exactly, and 1 pound = 453.59237 grams exactly) are the internationally defined standard values, so results are accurate to the precision shown.
Why do the unit options change when I switch category?
Each category — Length, Weight, Temperature, Area, Volume, Speed, and Time — has its own set of relevant units, so switching category automatically resets the "from" and "to" dropdowns to a sensible pair of units for that category.