Kilometers to Miles
A kilometer is 1,000 meters, the standard unit for road distances and speed limits outside the US and UK. A mile is 1,609.344 meters, the statute mile used on US and UK road signs and speed limits. 1 km equals ≈0.621371 mi, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to length, measured here against length's base unit (m) — every other length unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
mi = km × ≈0.621371
km = mi × ≈1.60934
Worked example: 5 km × ≈0.621371 = ≈3.10686 mi.
Conversion table
| Kilometer (km) | Mile (mi) |
|---|---|
| 1 km | ≈0.621371 mi |
| 2 km | ≈1.24274 mi |
| 3 km | ≈1.86411 mi |
| 5 km | ≈3.10686 mi |
| 10 km | ≈6.21371 mi |
| 20 km | ≈12.4274 mi |
| 25 km | ≈15.5343 mi |
| 50 km | ≈31.0686 mi |
| 100 km | ≈62.1371 mi |
| 250 km | ≈155.343 mi |
| 500 km | ≈310.686 mi |
| 1,000 km | ≈621.371 mi |
Frequently asked
- How many Miles in a kilometer?
- 1 km equals ≈0.621371 mi.
- How do I convert Kilometers to Miles?
- Multiply the value in km by ≈0.621371 to get mi. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Kilometer and Mile are both defined by a fixed conversion factor to length's base unit (m), so the result shown is exact to the precision displayed, not an approximation.