Method
The converter multiplies a value by a fixed unit factor so metric and imperial lengths describe the same distance.
Converters / browser tool
Length Converter
Free length converter to switch between metric and imperial length units.
From millimetres to miles, without the mental arithmetic.
Your inputs stay on your device
Convert length
live resultFor example, 1.5.
Converted value
1 km = 0.6214 mi
Enter a value, choose the unit you have, then choose the unit you need.
Context & Reference
How it works
Calculators are most useful when their assumptions are clear. Review these details to better understand the logic behind the results.
How to use it
Enter a length, choose its input unit, and scan the converted values with their unit labels.
Understand the result
Each output is the equivalent physical length in a different unit; no rounding is applied to the underlying conversion.
Example
One mile is approximately 1.609 kilometres.
Notes
Conversions use standard unit relationships. Display rounding can make a reverse conversion appear slightly different.
Useful next steps
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