Length Converter

Convert common metric and imperial length units instantly and see the formula used for the result.

ValueFromTo

Converted resultEnter a value aboveThe calculation runs locally as you type.

Private by default

This tool processes your input in the current browser tab and does not upload it for processing.

How to convert a length

Enter a number, select the source and target units, and read the result immediately. Use Swap units to reverse the direction.

All values are converted through meters using exact definitions such as one inch equals 0.0254 meter.

Values are not uploaded or stored. Extremely large values outside JavaScript’s finite numeric range are rejected.

Questions

Which length units are supported?

Millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles are included.

How accurate are the conversions?

The calculator uses defined conversion factors and displays up to ten decimal places when needed.

Is the value sent to a server?

No. The calculation runs in the browser as you type.

Continue

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