miles to km Converter

Convert miles to kilometers (and kilometers to miles) using standard distance conversions.

Reference: 1 mi = 1.609344 km (exact).

Result will appear here.
Quick conversions Result

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How it works

mi → km: kilometers = miles × 1.609344
km → mi: miles = kilometers ÷ 1.609344

Examples

  • 3.1 mi4.989 km (approx.)
  • 6.2 mi9.978 km (approx.)
  • 26.2 mi42.195 km (marathon distance, approx. display)

FAQ

  • What is the miles to km formula?

    kilometers = miles × 1.609344. (Because 1 mile = 1.609344 km exactly.)

  • Is this conversion exact?

    The base relationship 1 mile = 1.609344 km is exact. Displayed results may be rounded.

  • Can I convert kilometers to miles here?

    Yes. Switch the direction to “Kilometers → Miles”.

  • Are my inputs stored?

    No. All calculations run locally in your browser.

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