Utilities
Length Converter
Convert a length between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles locally in your browser.
Convert a length between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. Zero is a valid length.
Conversions run locally in your browser; your length is not uploaded or stored.
Convert one length into the units you need.
Enter a non-negative length and choose its unit to see the equivalent millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. Zero is valid. It runs locally in your browser, so your value is not uploaded or stored.
Frequently Asked Questions
Everything you need to know about this tool, how it works, and privacy.
Which length units can I convert?
Enter a length in millimeters, centimeters, meters, kilometers, inches, feet, yards, or miles. The converter returns the equivalent value in all eight units using exact metric factors and 1 inch = 0.0254 meters, 1 foot = 0.3048 meters, 1 yard = 0.9144 meters, and 1 mile = 1609.344 meters.
Can I convert zero or decimal lengths?
Yes. Zero is a valid length, and decimal values are accepted. Negative lengths are rejected because a length cannot be less than zero. Results show up to six decimal places when needed.
What happens with very large lengths?
The converter shows an error when the entered length is too large to convert safely, instead of returning an unreliable rounded result.
Does my length leave my browser?
No. The conversion and copy action run locally in your browser. CodeASystem does not upload or store the value you enter.