Speed Conversion Reference
| Speed | mph | km/h | m/s |
|---|---|---|---|
| Walking pace | 3 mph | 4.8 km/h | 1.34 m/s |
| Highway speed | 60 mph | 96.6 km/h | 26.8 m/s |
| Speed of sound | 767 mph | 1,235 km/h | 343 m/s |
| 1 knot | 1.151 mph | 1.852 km/h | 0.514 m/s |
Frequently Asked Questions
Multiply mph by 1.60934. Example: 60 mph = 60 x 1.609 = 96.56 km/h. Quick approximation: multiply by 1.6.
A knot is 1 nautical mile per hour = 1.852 km/h = 1.151 mph. It is used in aviation and maritime navigation.