Free Unit Converter
Convert length, mass, temperature, area, volume, speed and data size. Distinguish decimal and binary units, swap units and copy results.
Convert a value
Conversion result
Enter a value.
Decimal kB and binary KiB are separate units. Volume units marked US use US liquid measures.
How to use the Unit Converter
- Select a category, source unit and destination unit.
- Enter a value and choose decimal precision. The result updates immediately.
- Swap units for the reverse conversion, or copy the value and units.
Practical example
0 °C = 32 °F; 1 inch = 0.0254 meters; 1 kB = 1,000 bytes while 1 KiB = 1,024 bytes; 8 bits = 1 byte.
What inputs and outputs are supported?
| Input and limits | Finite numeric values across seven measurement categories |
|---|---|
| Output | Converted value with 0–10 decimal places or scientific notation for tiny values |
Limits, assumptions and troubleshooting
Temperature conversion includes offsets, not just scale factors. Temperatures below absolute zero are rejected. Volume labels explicitly use US liquid gallons, quarts and fluid ounces. SI kB/MB/GB/TB use powers of 1,000; KiB/MiB/GiB/TiB use powers of 1,024. Calculations use browser floating-point arithmetic and rounded display precision, so this utility is unsuitable for exact accounting or calibrated laboratory measurements.
Is my data private?
Input processing and output creation run on your device. This tool does not upload inputs, filenames or outputs, and analytics are disabled. The page loads normal website styles and fonts. Reset releases the current work; download a copy before leaving. This tool does not persist your input in browser storage.
Provided by Toolcross. Read our privacy policy or contact us with a reproducible issue. Updated .
Frequently asked questions
Are bits and bytes the same?
No. A byte contains eight bits. Both units are separate choices in Data size.
Why use scientific notation?
Very small nonzero results use scientific notation so rounding does not misleadingly show zero.