What is Unit Converter?
Convert between the units you actually run into: metres and feet, kilograms and pounds, Celsius and Fahrenheit, megabytes and gigabytes. Pick a category, type a value, and the conversion appears instantly.
How to use Unit Converter
- Choose a category: Length, Weight, Data or Temperature.
- Type the value you want to convert.
- Pick the unit to convert from and the unit to convert to — the result updates as you type.
Why use this tool?
Precise conversion factors
Exact factors are used (1 inch = 25.4mm, 1 pound = 0.45359237kg), so results are accurate enough for technical work, not just rough estimates.
Temperature handled properly
Temperature is not a simple multiplication — it needs offsets. Celsius, Fahrenheit and Kelvin are converted with the correct formulas.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32, so 20°C is 68°F. Choose the Temperature category and the tool does it for you.
Are data units 1024 or 1000 based?
This uses 1024-based units (1 GB = 1024 MB), which matches how operating systems report file sizes. Storage manufacturers often use 1000, which is why a “1 TB” drive shows as roughly 931 GB.
Is this tool really free?
Yes, completely free with no limits, no watermarks, no account and no trial period. Because everything runs on your own device, there are no server costs to pass on to you.