Miles and kilometers are the two most common units for measuring distance in everyday life. Whether you're driving abroad, training for a race, or reading about a destination, knowing how to convert between the two quickly is a genuinely useful skill.
Quick answer: 1 mile = 1.60934 kilometers. To convert miles to km, multiply by 1.609. To convert km to miles, multiply by 0.621.
A handy mental shortcut: to convert miles to km, multiply by 8 and divide by 5. For km to miles, multiply by 5 and divide by 8. For example, 10 miles → (10 × 8) ÷ 5 = 16 km (exact: 16.09 km).
| Miles | Kilometers | Common Reference |
|---|---|---|
| 0.5 mi | 0.80 km | Short walk |
| 1 mi | 1.61 km | Standard mile |
| 3 mi | 4.83 km | 5K run (approx) |
| 5 mi | 8.05 km | 8K run |
| 10 mi | 16.09 km | 10 mile race |
| 13.1 mi | 21.09 km | Half marathon |
| 26.2 mi | 42.19 km | Full marathon |
| 100 mi | 160.93 km | Road trip distance |
The United States, United Kingdom, and a small number of other countries primarily use miles for road distances. The UK officially uses miles for road signs and speed limits, though metric is standard in most other contexts.
The rest of the world — including all of continental Europe, Asia, Africa, Australia, and South America — uses kilometers for road distances and speed limits. This means if you're driving in France or Japan, road signs and speedometers are in km/h.
| mph | km/h | Context |
|---|---|---|
| 30 mph | 48.3 km/h | Urban speed limit (UK) |
| 60 mph | 96.6 km/h | Rural road limit (UK) |
| 70 mph | 112.7 km/h | UK motorway limit |
| 100 km/h | 62.1 mph | European motorway |
| 130 km/h | 80.8 mph | German Autobahn (advisory) |
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