Back to Tools
Conversion Calculator
Master Unit Converter
Select a category and convert instantly
Result Explanation
Quick Reference Table
About the Conversion Calculator
Convert between units in eight categories: length, weight, temperature, volume, speed, time, data storage and fuel efficiency.
How to use the Conversion Calculator
- Choose a category such as Length or Temperature.
- Enter the value, choose the unit in From and the unit in To.
- Press Convert Now.
Formula and method
Each conversion multiplies by a fixed factor. Temperature uses formulas because the scales start at different points: °F = °C × 9/5 + 32.
Worked example
10 km = 6.21 miles. 100 °F = 37.78 °C. 8 gigabytes = 8,000 megabytes (decimal).
Tips
- Data storage can use decimal (1 GB = 1,000 MB) or binary (1 GiB = 1,024 MiB) definitions.
- For fuel efficiency, remember that mpg and L/100 km run in opposite directions.
Frequently Asked Questions
Divide 235.215 by the mpg value (US gallons).