Kilometers per hour to miles per hour table
| kilometers per hour (km/h) | miles per hour (mph) |
|---|---|
| 1 km/h | 0.621371 mph |
| 2 km/h | 1.24274 mph |
| 3 km/h | 1.86411 mph |
| 4 km/h | 2.48548 mph |
| 5 km/h | 3.10686 mph |
| 10 km/h | 6.21371 mph |
| 20 km/h | 12.4274 mph |
| 25 km/h | 15.5343 mph |
| 50 km/h | 31.0686 mph |
| 75 km/h | 46.6028 mph |
| 100 km/h | 62.1371 mph |
1 km/h in other units
| meters per second (m/s) | 0.277778 |
|---|---|
| miles per hour (mph) | 0.621371 |
| feet per second (ft/s) | 0.911344 |
| knots | 0.539957 |
How the value is converted
1 km/h × 0.6213711922 = 0.6213711922 mph
Speed compares distance per elapsed time. Mach is not included because the local speed of sound depends on the medium and conditions.
The first answer is rounded to two decimal places for results of 1 or more, or three significant digits below 1; the exact figure keeps 10 significant digits. Why rounding early changes the answer.