km to mi Converter

Convert kilometers to miles. 1 mile = 1.609344 kilometers (exact).

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Length Converter

Convert length units instantly

1 km = 0.621371 mi
Live conversion result
How it works

Base unit: m. Values convert via the base unit for this category.

Formula (scale-only): mi = km × 0.621371
That is, multiply by 0.621371 to convert km to mi.
Examples
  • 1 km = 0.621371 mi
  • 5 km = 3.10686 mi
Tips
  • 1 inch is exactly 2.54 centimeters (defined since 1959).
  • The international foot is exactly 0.3048 meters.

Popular conversions

kmmi
10.621371
53.10686
106.21371
10062.1371

Examples

  • 5 km = 3.10686 mi
  • 10 km = 6.21371 mi

How to convert

mi = km × 0.621371. Multiply the value in km by 0.621371 to get mi.

Related conversions

cm to inchesinches to cmmeters to feetfeet to metersmm to inchesinches to mm

FAQs

  • What’s the km→mi factor?

    Multiply by 0.6213711922 (reciprocal of 1.609344).

  • How many miles is 10 km?

    About 6.2137 mi.

  • Is 1.609344 exact?

    Yes, by international definition of the mile.