How many miles is 1 kilometre?

1 kilometre is approximately 0.621 miles, using the exact conversion factor 1 km = 0.62137119 mi.

Does this use exact or rounded conversion factors?

Exact, internationally defined conversion factors are used throughout, results are only rounded for display.

Convert between metres, feet, miles, kilometres and more.

How this is calculated

Converts via a common base unit (metres) using exact multipliers

Convert between metres, feet, miles, kilometres and more.

Worked example

10 km to miles

Result: 6.21 mi

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