Kilometers to miles
1 kilometer in miles
1 km = 0.62137 mi
mi = km × 0.6213711922
To convert kilometers to miles, multiply by 0.6213711922. The table below gives the values people look up most often, and the converter works for any number.
Kilometers to miles table
| Kilometers | Miles |
|---|---|
| 1 km | 0.62137 |
| 2 km | 1.242742 |
| 3 km | 1.864114 |
| 4 km | 2.485485 |
| 5 km | 3.106856 |
| 10 km | 6.213712 |
| 15 km | 9.320568 |
| 20 km | 12.42742 |
| 25 km | 15.53428 |
| 30 km | 18.64114 |
| 40 km | 24.85485 |
| 50 km | 31.06856 |
| 75 km | 46.60284 |
| 100 km | 62.13712 |
| 250 km | 155.3428 |
| 500 km | 310.6856 |
| 1,000 km | 621.3712 |
How the conversion works
The relationship is mi = km × 0.6213711922. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
Common questions
- How many miles are in one kilometer?
- One kilometer equals 0.62137 miles. mi = km × 0.6213711922.
- How do you convert kilometers to miles?
- Use mi = km × 0.6213711922. So 10 km is 6.213712 mi.
- How many kilometers are in one mile?
- One mile equals 1.609344 kilometers, which is the reverse of the conversion above.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place