Speed Converter
Convert between miles per hour, kilometers per hour, knots, and more speed units.
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Common Conversions
| Miles per Hour (mph) | Kilometers per Hour (km/h) |
|---|---|
| 10 mph | 16.0934 km/h |
| 30 mph | 48.2803 km/h |
| 50 mph | 80.4671 km/h |
| 60 mph | 96.5606 km/h |
| 70 mph | 112.654 km/h |
| 100 mph | 160.934 km/h |
| 120 mph | 193.121 km/h |
| Knots (kn) | Miles per Hour (mph) |
|---|---|
| 10 kn | 11.5078 mph |
| 20 kn | 23.0156 mph |
| 30 kn | 34.5234 mph |
| 50 kn | 57.5389 mph |
| 100 kn | 115.078 mph |
| 150 kn | 172.617 mph |
Speed Conversions
Frequently Asked Questions
Multiply mph by 1.60934 to get km/h. For example, 60 mph = 96.56 km/h.
A knot is one nautical mile per hour, used in maritime and aviation. 1 knot = 1.15078 mph or 1.852 km/h.
Mach 1 is the speed of sound, approximately 343 m/s, 1,235 km/h, or 767 mph at sea level.