Convert kilometre to mile
1 kilometre = 0.6213712 miles. Enter any value below for an exact conversion.
1 km =
0.6213712 mi
miles
Need the reverse? Convert mile to kilometre →
Formula
1 kilometre = 0.6213712 miles mile = kilometres × 0.6213712 kilometre = miles × 1.609344
kilometre to mile conversion table
About converting kilometres to miles
Kilometres to miles helps US and UK readers interpret distances quoted in metric — race distances, speed limits, and travel itineraries. A handy mental shortcut is that a kilometre is roughly six-tenths of a mile.
Method & sources
Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.
- NIST Special Publication 811 — Guide for the Use of the SI
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement
Page last updated: October 1, 2026
Frequently asked questions
How many miles are in a kilometre?
One kilometre equals 0.6213712 miles. So 10 kilometres is 6.213712 miles. Use the converter above for any value.
What is the formula to convert kilometres to miles?
1 kilometre = 0.6213712 miles mile = kilometres × 0.6213712 kilometre = miles × 1.609344
Is the kilometre-to-mile conversion exact?
Yes. The conversion factor between kilometres and miles is defined exactly, so results are precise — only rounded for display.
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