Convert Miles Per Hour to Kilometers Per Hour
1 mile per hour = 1.609344 kilometers per hour. Type any value below to convert in either direction — the calculation happens in your browser.
Miles Per Hour to Kilometers Per Hour formula
Multiply the number of miles per hour by 1.609344 to get kilometers per hour.
kilometers per hour = miles per hour × 1.609344To go the other way: divide the number of kilometers per hour by 1.609344, or multiply by 0.6213712.
miles per hour = kilometers per hour ÷ 1.609344Miles Per Hour to Kilometers Per Hour conversion table
| Miles Per Hour | Kilometers Per Hour |
|---|---|
| 1 mph | 1.609344 km/h |
| 2 mph | 3.218688 km/h |
| 3 mph | 4.828032 km/h |
| 4 mph | 6.437376 km/h |
| 5 mph | 8.04672 km/h |
| 6 mph | 9.656064 km/h |
| 7 mph | 11.265408 km/h |
| 8 mph | 12.874752 km/h |
| 9 mph | 14.484096 km/h |
| 10 mph | 16.09344 km/h |
| 15 mph | 24.14016 km/h |
| 20 mph | 32.18688 km/h |
| 25 mph | 40.2336 km/h |
| 30 mph | 48.28032 km/h |
| 40 mph | 64.37376 km/h |
| 50 mph | 80.4672 km/h |
| 75 mph | 120.7008 km/h |
| 100 mph | 160.9344 km/h |
| 250 mph | 402.336 km/h |
| 500 mph | 804.672 km/h |
| 1,000 mph | 1,609.344 km/h |
Kilometers Per Hour to Miles Per Hour conversion table
| Kilometers Per Hour | Miles Per Hour |
|---|---|
| 1 km/h | 0.6213712 mph |
| 2 km/h | 1.242742 mph |
| 3 km/h | 1.864114 mph |
| 4 km/h | 2.485485 mph |
| 5 km/h | 3.106856 mph |
| 6 km/h | 3.728227 mph |
| 7 km/h | 4.349598 mph |
| 8 km/h | 4.97097 mph |
| 9 km/h | 5.592341 mph |
| 10 km/h | 6.213712 mph |
About the mile per hour
Miles per hour is the road speed unit of the United States and United Kingdom.
About the kilometer per hour
Kilometres per hour is the speed unit on road signs and speedometers in most countries.
Frequently asked questions
How many kilometers per hour are in a mile per hour?
There are 1.609344 kilometers per hour in one mile per hour.
How many miles per hour are in a kilometer per hour?
There are 0.6213712 miles per hour in one kilometer per hour.
Is this conversion exact?
The ratio between the mile per hour and the kilometer per hour is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 miles per hour in kilometers per hour?
10 miles per hour equals 16.09344 kilometers per hour.