Convert Miles per Hour to Knot
Instantly convert Miles per Hour (mph) to Knot (kn). Free and accurate.
About This Conversion
What is a Miles per Hour to Knot conversion?
One miles per hour (mph) is equal to 0.8689769926 knot (kn). This relationship is fixed by international measurement standards and does not change. To convert any number of miles per hour to knot, multiply your value by 0.8689769926; to go the other way, divide by 0.8689769926.
How to convert Miles per Hour to Knot
The conversion formula is: 1 mph = 0.8689769926 kn. Enter any value into the converter above and the result updates instantly. The formula is also shown alongside the answer so you can check the working or use it in your own calculations.
Where is this conversion used?
Speed conversions are used in road travel, aviation, maritime navigation, athletics, and meteorology. Miles per hour (mph) is common in the UK and USA, kilometres per hour (km/h) is the global metric standard, and knots are used at sea and in aviation. Pilots, sailors, meteorologists, race engineers, and transport planners convert between speed units regularly. The speed of sound at sea level is roughly 343 m/s, 1,235 km/h, or 767 mph — a useful benchmark for high-speed calculations.
Helpful tip
A quick approximation: 100 km/h is roughly 62 mph. To convert mentally, multiply km/h by 0.6 for a close estimate in mph.
Formula
1 mph = 0.8689769926 kn
mph to kn Conversion Table
| mph | kn |
|---|---|
| 0.1 mph | 0.0868976993 kn |
| 0.5 mph | 0.4344884963 kn |
| 1 mph | 0.8689769926 kn |
| 2 mph | 1.73795399 kn |
| 5 mph | 4.34488496 kn |
| 10 mph | 8.68976993 kn |
| 20 mph | 17.37953985 kn |
| 25 mph | 21.72442482 kn |
| 50 mph | 43.44884963 kn |
| 100 mph | 86.89769926 kn |
| 250 mph | 217.24424816 kn |
| 500 mph | 434.48849632 kn |
| 1000 mph | 868.97699264 kn |