Miles to Kilometers Conversion Chart
Quick reference chart converting miles (mi) to kilometers (km). Covers 1–1,000 miles at common intervals for road distances and speed limits.
For a custom value not in this chart, use the interactive Mile to Kilometer converter.
| Mile (mi) | Kilometer (km) |
|---|---|
| 1 mi | 1.60934 km |
| 2 mi | 3.21869 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.0934 km |
| 15 mi | 24.1402 km |
| 20 mi | 32.1869 km |
| 25 mi | 40.2336 km |
| 26.2 mi | 42.1648 km |
| 30 mi | 48.2803 km |
| 40 mi | 64.3738 km |
| 50 mi | 80.4672 km |
| 60 mi | 96.5606 km |
| 70 mi | 112.654 km |
| 75 mi | 120.701 km |
| 100 mi | 160.934 km |
| 150 mi | 241.402 km |
| 200 mi | 321.869 km |
| 250 mi | 402.336 km |
| 300 mi | 482.803 km |
| 400 mi | 643.738 km |
| 500 mi | 804.672 km |
| 1000 mi | 1609.34 km |
Conversion Formula
km = miles × 1.609344 (exact) 1 mile = 1,760 yards = 5,280 feet = 1.609344 km Quick estimate: miles × 1.6 (within ~0.6%) Running distances: 3.1 mi = 5.0 km (5K) 6.2 mi = 10.0 km (10K) 13.1 mi = 21.082 km (half marathon) 26.2 mi = 42.195 km (marathon) US speed limits in km/h: 25 mph = 40.2 km/h (residential) 55 mph = 88.5 km/h (rural highway) 65 mph = 104.6 km/h (US highway) 70 mph = 112.7 km/h (US interstate)
Frequently Asked Questions
How many km is 1 mile?
One mile equals exactly 1.609344 kilometers. A quick mental estimate: 1 mile ≈ 1.6 km. This approximation introduces an error of only 0.04%.
How many km is a marathon (26.2 miles)?
A marathon distance of 26.2 miles equals approximately 42.195 kilometers. The official marathon distance is defined as 42.195 km (42 km and 195 m).
How many miles is 100 km?
100 km equals approximately 62.14 miles. A useful anchor: 100 km ≈ 62 miles, or roughly 60 miles for mental math purposes.
How many km is a half marathon (13.1 miles)?
13.1 mi × 1.609344 = 21.082 km. The official half marathon distance is 21.0975 km. Half marathons are increasingly popular and this is one of the most-searched running distances.
What is 70 mph in km/h?
70 mph × 1.609344 = 112.65 km/h. The US Interstate speed limit of 70 mph is close to the motorway speed limit in many European countries (120 km/h = 74.6 mph).
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Use the interactive converter →All conversion values are calculated using internationally recognized conversion factors. Results are provided for general informational purposes — verify critical values independently. Read our full disclaimer.