In-browser tool
Length Converter
Convert metric and imperial length — meters, kilometers, miles, feet and inches — instantly in your browser.
0.1
1 mm = 0.1 cm
Converted in your browser — nothing is uploaded.
How it works
01
Enter a value
02
Pick the units
03
Copy the result
Frequently asked questions
How accurate are the conversions?
They use exact standard factors (e.g. 1 inch = 2.54 cm), computed in your browser to about 6 significant figures. Temperature uses the exact Celsius/Fahrenheit/Kelvin formulas.
Is my file uploaded to a server?
No. This tool runs entirely in your browser. You can open your browser's network tab and verify no request carries your file.