Miles per hour to Kilometers per hour (mph to km/h)
A fast miles per hour-to-kilometers per hour calculator – the result updates as you type.
1 mph = 1.609344 km/h
1 mph = 1.609344 km/h. Enter a value and get the result instantly. Below you will find the formula and a table of commonly used values.
Formula
km/h = mph × 1.609344
mph to km/h table
| mph | km/h |
|---|---|
| 1 mph | 1.6093 km/h |
| 2 mph | 3.2187 km/h |
| 5 mph | 8.0467 km/h |
| 10 mph | 16.0934 km/h |
| 20 mph | 32.1869 km/h |
| 50 mph | 80.4672 km/h |
| 100 mph | 160.9344 km/h |
| 500 mph | 804.672 km/h |
| 1,000 mph | 1,609.344 km/h |
Where it is used
Miles per hour are converted to km/h when renting a car in the USA or UK and reading driving instructions. For example, a 30 mph limit is 48.28 km/h, and 60 mph is 96.56 km/h.
A quick mental shortcut
1 mph = 1.609344 km/h. Roughly, multiply by 1.6: 70 x 1.6 = 112 km/h (the exact result is 112.65).
Exact examples: 30 x 1.609344 = 48.28 km/h; 60 x 1.609344 = 96.56 km/h.
Good to know
The USA and the UK are among the few countries whose speed signs still show miles per hour.