About this calculator

Use the length converter to convert length and distance between 8 units instantly. Enter a value in any unit; every other unit updates automatically. Conversions use exact SI definitions where they exist and standard internationally accepted factors otherwise.

How it works

Enter your value. The result updates as you type. Nothing you enter is stored.

Limits

It uses standard conversion factors and rounds the result for display. Check the rounding when exact precision matters.

Who it's for

Students, engineers, cooks, travellers and anyone switching between metric and imperial units.

Frequently asked questions

How many feet in a metre?

1 metre = 3.28084 feet (exact: 1 m / 0.3048).

How many cm in an inch?

1 inch = 2.54 centimetres exactly.

What does the Length Converter do?

Convert length and distance between every common unit. Free, instant, accurate. Use the length converter to convert length and distance between 8 units instantly. Enter a value in any unit; every other unit updates automatically. Conversions use exact SI definitions where they exist and standard internationally accepted factors otherwise.

Is the Length Converter free to use?

Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.

How accurate is the Length Converter?

Results are calculated in real time using industry-standard formulas. Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified unit converters professional before committing to a purchase or a job.

What inputs does the Length Converter need?

Enter values for: Value. Sensible defaults are pre-filled where possible so you can start with a single change.

Can I embed the Length Converter on my own website?

Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.