Miles to km
One mile is 1.60934 kilometers. Type a length in miles to see it in kilometers.
How to convert miles to kilometers
kilometers = miles × 1.609344
For example, 10 mi is 16.09 km. The figure is exact. The international mile is defined as 1,609.344 meters.
A quick way to do it in your head
Multiply by 8 and divide by 5. Or add half, then add a tenth of the original.
- 50 miles: 50 × 8 = 400, ÷ 5 = 80 km. The true answer is 80.47 km.
- 30 miles: 240 ÷ 5 = 48 km. The true answer is 48.28 km.
- 100 miles: 100 + 50 + 10 = 160 km. The true answer is 160.93 km.
Both versions use 1.6 where the true figure is 1.609, so they come out about half a percent low.
Miles to kilometers table
| Miles | Kilometers |
|---|---|
| 1 mi | 1.61 km |
| 2 mi | 3.22 km |
| 3 mi | 4.83 km |
| 5 mi | 8.05 km |
| 10 mi | 16.09 km |
| 13.1 mi | 21.08 km |
| 15 mi | 24.14 km |
| 20 mi | 32.19 km |
| 25 mi | 40.23 km |
| 26.2 mi | 42.16 km |
| 30 mi | 48.28 km |
| 40 mi | 64.37 km |
| 50 mi | 80.47 km |
| 60 mi | 96.56 km |
| 70 mi | 112.65 km |
| 80 mi | 128.75 km |
| 100 mi | 160.93 km |
| 200 mi | 321.87 km |
| 500 mi | 804.67 km |
| 1,000 mi | 1609.34 km |
Mph to km/h
Speed limits convert with the same factor as distances.
| Mph | Km/h |
|---|---|
| 20 mph | 32.2 km/h |
| 25 mph | 40.2 km/h |
| 30 mph | 48.3 km/h |
| 40 mph | 64.4 km/h |
| 50 mph | 80.5 km/h |
| 55 mph | 88.5 km/h |
| 60 mph | 96.6 km/h |
| 65 mph | 104.6 km/h |
| 70 mph | 112.7 km/h |
| 75 mph | 120.7 km/h |
| 80 mph | 128.7 km/h |
Running pace: minutes per mile to minutes per kilometer
Pace works the other way round from speed. A kilometer is shorter than a mile, so it takes less time: divide the minutes per mile by 1.609344.
| Pace per mile | Pace per km | Marathon time at this pace |
|---|---|---|
| 6:00 | 3:44 | 2 h 37 min |
| 7:00 | 4:21 | 3 h 04 min |
| 8:00 | 4:58 | 3 h 30 min |
| 9:00 | 5:36 | 3 h 56 min |
| 10:00 | 6:13 | 4 h 22 min |
| 11:00 | 6:50 | 4 h 48 min |
| 12:00 | 7:27 | 5 h 15 min |
A nautical mile is a different unit, used at sea and in the air. It is exactly 1.852 km, about 15% longer than the ordinary mile on this page.
To go the other way, use km to miles. For other units, see the unit converter.
Questions
How many kilometers is 1 mile?
1.60934 km.
How many kilometers is 5 mi?
8.05 km.
How many kilometers is 10 mi?
16.09 km.
How many kilometers is 26.2 mi?
42.16 km.
How many kilometers is 100 mi?
160.93 km.
How many km is a marathon?
42.195 km, which is 26 miles and 385 yards.
How many steps are in a mile?
Roughly 2,000 to 2,500 for most adults, depending on height and stride. A kilometer is about 1,250 to 1,550 steps.