Kilometres per hour to Miles per hour Converter
Convert kilometres per hour (km/h) to miles per hour (mph) instantly. Speed conversions come up with expressway limits in km/h, foreign car specs in mph and wind speeds reported in knots by the Meteorological Service.
Result
- Miles per hour
- 0.621371 mph
How to use the kilometres per hour to miles per hour converter
- Enter the kilometres per hour (km/h).
- The results update as you type, or press Calculate.
- Read the miles per hour first, then the supporting figures below it.
Formula
Miles per hour = kilometres per hour × 0.6213711922
Worked example
For example, with these inputs:
- Kilometres per hour (km/h): 1
the calculator returns:
- Miles per hour: 0.621371 mph
Kilometres per hour to Miles per hour table
| Kilometres per hour | Miles per hour |
|---|---|
| 1 km/h | 0.621371 mph |
| 2 km/h | 1.2427 mph |
| 5 km/h | 3.1069 mph |
| 10 km/h | 6.2137 mph |
| 20 km/h | 12.4274 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 100 km/h | 62.1371 mph |
| 250 km/h | 155.3428 mph |
| 500 km/h | 310.6856 mph |
| 1,000 km/h | 621.3712 mph |
About this conversion
Speed conversions come up with expressway limits in km/h, foreign car specs in mph and wind speeds reported in knots by the Meteorological Service.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Frequently asked questions
How many miles per hour are in one kilometres per hour?
1 km/h = 0.621371 mph.
How do I convert km/h to mph?
Miles per hour = kilometres per hour × 0.6213711922.