Free · no account · browser only
Unit Converter
Convert between common units in 8 categories. Pick a category, choose From and To, enter a value. Free, no signup.
Your values stay in this browser · nothing uploaded · no account
Category
Result
1 Millimetre (mm) = 0.1 Centimetre (cm)
Stays responsive · updates as you type
/unit-converter
How it works
Four steps. The result stays in this browser.
- 1
Category
Select Length, Weight, Temperature, Volume, Area, Speed, Time, or Data.
- 2
From / To
Choose the source unit and target unit from the dropdowns.
- 3
Value
Enter a value. The result updates instantly in this browser.
- 4
Swap
Use the swap button (⇄) to reverse the conversion direction.
Frequently Asked Questions
Categories, privacy, and how conversion works.
Does this need an account?
No. This converter runs in your browser. Nothing is uploaded. No account is required.
What types of units can I convert?
Eight categories: Length, Weight, Temperature, Volume, Area, Speed, Time, and Data.
How do I convert between units?
Pick a category, choose From and To, and enter a value. The result updates in this browser. Use ⇄ to reverse From and To.
How is temperature conversion handled?
Temperature uses formulas, not a simple factor. Celsius to Fahrenheit is (C × 9/5) + 32. Kelvin is C + 273.15. Other pairs go through Celsius.
What data units are supported?
Decimal units are Bit, Byte, Kilobyte, Megabyte, Gigabyte, and Terabyte (powers of 1,000). Binary units are Kibibyte, Mebibyte, Gibibyte, and Tebibyte (powers of 1,024).
Which related tools are on this page?
Case Converter, Character Counter, Word Counter, and JSON Formatter. This page does not link to itself.