Kilometres per hour to miles per hour converter
Miles per hour (mph)
1 kilometre per hour = 0.6213711922 miles per hour
How to convert kilometres per hour to miles per hour
mph = km/h × 0.621371192237
Multiply the number of kilometres per hour by 0.621371192237 to get miles per hour. Going the other way, divide by 0.621371192237 (or multiply by 1.609344).
One kilometre per hour is exactly defined as 0.621371192237 miles per hour (to 12 significant figures), and one mile per hour is 1.609344 kilometres per hour.
Worked examples
- Convert 5 kilometres per hour: 5 × 0.621371192237 = 3.106855961 3.106855961 miles per hour.
- Convert 12.5 kilometres per hour: 12.5 × 0.621371192237 = 7.767139903 7.767139903 miles per hour.
- Convert 250 kilometres per hour: 250 × 0.621371192237 = 155.3427981 155.3427981 miles per hour.
Quick-reference table
| km/h | mph |
|---|---|
| 1 | 0.6213711922 |
| 2 | 1.242742384 |
| 3 | 1.864113577 |
| 5 | 3.106855961 |
| 10 | 6.213711922 |
| 15 | 9.320567884 |
| 20 | 12.42742384 |
| 25 | 15.53427981 |
| 50 | 31.06855961 |
| 75 | 46.60283942 |
| 100 | 62.13711922 |
| 1,000 | 621.3711922 |
| mph | km/h |
|---|---|
| 1 | 1.609344 |
| 2 | 3.218688 |
| 3 | 4.828032 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 15 | 24.14016 |
| 20 | 32.18688 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 75 | 120.7008 |
| 100 | 160.9344 |
| 1,000 | 1,609.344 |
Related conversions
- ⇄ Miles per hour to kilometres per hour
- Kilometres per hour to metres per second
- Kilometres per hour to knots
- Kilometres per hour to feet per second
- Kilometres per hour to kilometres per minute
- Kilometres per hour to centimetres per second
- Kilometres per hour to miles per minute
- Metres per second to miles per hour
- Knots to miles per hour
Frequently asked questions
How many miles per hour are in 1 kilometre per hour?
1 kilometre per hour equals 0.6213711922 miles per hour.
What is the formula to convert kilometres per hour to miles per hour?
Use mph = km/h × 0.621371192237. Multiply the number of kilometres per hour by 0.621371192237 to get miles per hour. Going the other way, divide by 0.621371192237 (or multiply by 1.609344).
What is 100 kilometres per hour in miles per hour?
100 kilometres per hour is 62.13711922 miles per hour.