Convert mile per hour to kilometer per hour
1 mph = 1.609344 km/h
1 mph = 1.61 km/h
1 mph in every speed unit
| meter per second | 0.447 m/s |
| kilometer per hour | 1.61 km/h |
| foot per second | 1.47 ft/s |
| mile per hour | 1 mph |
| knot | 0.869 kn |
| foot per minute | 88 ft/min |
| centimeter per second | 44.7 cm/s |
| meter per hour | 1,610 m/h |
| meter per day | 38,600 m/d |
| foot per day | 127,000 ft/d |
How the conversion works
Multiply by 1.609344 to go from mile per hour to kilometer per hour, or divide by it to go back. Every conversion on this site routes through the SI value (m/s) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? kilometer per hour to mile per hour — 1 km/h = 0.6213711922 mph.
mile per hour to kilometer per hour — common values
| 1 mph | 1.609344 km/h |
| 2 mph | 3.218688 km/h |
| 3 mph | 4.828032 km/h |
| 5 mph | 8.04672 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 |
| 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 |
| 1000 mph | 1,609.344 km/h |
Other speed conversions
m/s → km/hft/s → km/hmph → m/smph → ft/smph → knmph → ft/minkn → km/hft/min → km/h