Miles per hour to knots
Type a value in mph to get it in kn instantly.
That's 1.24× as fast as a car on the highway, while a bullet train is 1.99× faster. In one minute you'd cover 1.448 nautical miles.
Convert the other way: kn to mph
What it means
How fast is that?
Reference speeds are typical values. Mach uses the speed of sound in dry air at 20 °C (343 m/s).
The math
How to convert mph to kn
To convert miles per hour to knots, multiply by 0.868976.
Example: 100 mph × 0.868976 = 86.8976 kn.
In the other direction, 1 kn = 1.15078 mph.
Every unit
Your speed in every unit
Tables
mph to kn conversion table
| mph | kn |
|---|---|
| 1 mph | 0.868976 kn |
| 5 mph | 4.34488 kn |
| 10 mph | 8.68976 kn |
| 20 mph | 17.3795 kn |
| 30 mph | 26.0693 kn |
| 40 mph | 34.759 kn |
| 50 mph | 43.4488 kn |
| 60 mph | 52.1386 kn |
| 70 mph | 60.8283 kn |
| 80 mph | 69.5181 kn |
| 90 mph | 78.2079 kn |
| 100 mph | 86.8976 kn |
| 110 mph | 95.5874 kn |
| 120 mph | 104.277 kn |
| 130 mph | 112.967 kn |
| 150 mph | 130.346 kn |
| 200 mph | 173.795 kn |
| 300 mph | 260.693 kn |
| 500 mph | 434.488 kn |
| 1,000 mph | 868.976 kn |
kn to mph conversion table
| kn | mph |
|---|---|
| 1 kn | 1.15078 mph |
| 5 kn | 5.7539 mph |
| 10 kn | 11.5078 mph |
| 20 kn | 23.0156 mph |
| 30 kn | 34.5234 mph |
| 40 kn | 46.0312 mph |
| 50 kn | 57.539 mph |
| 60 kn | 69.0468 mph |
| 70 kn | 80.5546 mph |
| 80 kn | 92.0624 mph |
| 90 kn | 103.57 mph |
| 100 kn | 115.078 mph |
| 110 kn | 126.586 mph |
| 120 kn | 138.094 mph |
| 130 kn | 149.601 mph |
| 150 kn | 172.617 mph |
| 200 kn | 230.156 mph |
| 300 kn | 345.234 mph |
| 500 kn | 575.39 mph |
| 1,000 kn | 1,150.78 mph |
Quick answers
Quick answers
- How many kn is 1 mph?
- 1 mph is 0.868976 kn.
- How many kn is 10 mph?
- 10 mph is 8.68976 kn.
- How many kn is 100 mph?
- 100 mph is 86.8976 kn.
The units
About these units
Miles per hour (mph)
The mile per hour is used on road signs in the United Kingdom, the United States and a few other countries. A mile is exactly 1,609.344 meters, so 1 mph is 1.609344 km/h.
Knots (kn)
A knot is one nautical mile per hour, the unit of ships, aircraft and wind at sea. The nautical mile (1,852 m) was originally one minute of latitude, so 1 knot is exactly 1.852 km/h.
Keep going