For races
Common race distances convert cleanly: 5K is 3.11 miles, 10K is 6.21 miles, and a marathon is 26.22 miles.
🧠Distance converter
KM to Miles Converter
Convert kilometers to miles with a browser calculator, direct answer, formula, quick distance table, and trip-planning examples.
Direct answer: 1 km = 0.621371 miles. 10 km = 6.21371 miles.
KM to Miles Converter calculator
Formula: miles = kilometers × 0.6213711922
Quick reference table
| Input | Converted value | Useful context |
|---|---|---|
| 1 | 0.62 | short walk |
| 5 | 3.11 | 5K distance |
| 10 | 6.21 | 10K distance |
| 21.0975 | 13.11 | half marathon |
| 42.195 | 26.22 | marathon |
| 100 | 62.14 | road trip segment |
Displayed values are rounded for readability; the calculator uses the full conversion factor.
For maps
Mapping apps may round distances, so expect tiny display differences from exact calculator values.
Related distance and speed converters
FAQ
How many miles are in 1 km?
1 kilometer equals 0.621371 miles.
How many miles is a 5K?
A 5K is about 3.11 miles.
Is this conversion exact enough for running and travel?
Yes for normal running, travel, and mapping use. The table rounds display values, while the calculator uses the full factor.
Source snapshot: Traffic radar 2026-05-12-0325: P0 unit-conversion expansion after local quality gate passed at 1,029 URLs. Built as original distance and speed calculators; no external repository content copied. Formulas reviewed 2026-05-12; values are deterministic unit conversions.