Length Converter
Convert lengths between metric and imperial units instantly.
Calculator
Use the Length Converter
Result
—
Formula
value × (from factor ÷ to factor)
Step-by-step
- 1
Enter the value
The length you want to convert.
- 2
Pick the units
Choose the source and target units.
Worked example
Example input: value: 1, from: km, to: mi
Result: 0.6214
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Frequently asked questions
How many miles are in a kilometer?
About 0.6214 miles — the converter divides by the exact statute mile of 1609.344 meters. The example 1 km to mi above returns that figure, and kilometer trips map to it the same way.
Which units does this converter cover?
The metric ladder (km, m, cm, mm) and the imperial four (mi, yd, ft, in). Every unit hangs off the meter as the base, so any pair in that list converts through one shared table.
Why do the imperial factors look so odd?
Because they are exact legal definitions: a mile is 1609.344 meters, an inch is 0.0254 — agreed international lengths, not rounded shortcuts. Precision in, precision out.