Length Converter
Convert between millimeters, centimeters, meters, inches, feet, and more.
From
To
Result
0.39 in
Decimal precision:
About the Length Converter
The Length Converter converts between meters, centimeters, kilometers, inches, feet, yards, and miles. Useful for furniture sizes in inches vs centimeters, running distances in miles vs kilometers, and screen sizes.
Results update instantly as you type, with precise math underneath and sensible rounding on screen. Everything runs locally in your browser.
How to use it
- Enter your value in the input field.
- Select the units or values involved.
- Read the result — it updates as you type.
- Adjust any input to recalculate instantly.
Frequently asked questions
How exact is the inch-to-centimeter conversion?
Exact by definition: 1 inch = 2.54 cm, fixed by international agreement since 1959.
Does it work with decimals?
Yes — enter any real number; the calculation is precise and only the display is rounded.
Is anything sent to a server?
No. All calculations run locally in your browser.
Is it free to use?
Yes, completely free, with no limits and no account required.