Miles to kilometers
1 mile in kilometers
1 mi = 1.609344 km
km = mi × 1.609344
To convert miles to kilometers, multiply by 1.609344. The table below gives the values people look up most often, and the converter works for any number.
Miles to kilometers table
| Miles | Kilometers |
|---|---|
| 1 mi | 1.609344 |
| 2 mi | 3.218688 |
| 3 mi | 4.828032 |
| 4 mi | 6.437376 |
| 5 mi | 8.04672 |
| 10 mi | 16.09344 |
| 15 mi | 24.14016 |
| 20 mi | 32.18688 |
| 25 mi | 40.2336 |
| 30 mi | 48.28032 |
| 40 mi | 64.37376 |
| 50 mi | 80.4672 |
| 75 mi | 120.7008 |
| 100 mi | 160.9344 |
| 250 mi | 402.336 |
| 500 mi | 804.672 |
| 1,000 mi | 1,609.344 |
How the conversion works
The relationship is km = mi × 1.609344. 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 kilometers are in one mile?
- One mile equals 1.609344 kilometers. km = mi × 1.609344.
- How do you convert miles to kilometers?
- Use km = mi × 1.609344. So 10 mi is 16.09344 km.
- How many miles are in one kilometer?
- One kilometer equals 0.62137 miles, which is the reverse of the conversion above.
Related pages
- Kilometers to Miles The reverse conversion
- Miles to Meters
- Miles to Centimeters
- Miles to Millimeters
- Miles to Yards
- Miles to Feet
- Miles to Inches
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