Convert Mile per Hour to Knot
Live bidirectional calculator for Miles per Hour (mph) and Knots (kn) with verified formula and conversion charts.
Speed5 units
How the Calculation Works (Linear Scaling)
Since 1 Knot = 1.150779 Miles per Hour, divide the value in Miles per Hour by 1.150779.
Mile per Hour to Knot Conversion Table
Precomputed values for quick reference and printing.
| Mile per Hour | Knot |
|---|---|
| 1 mph | 0.869 kn |
| 2 mph | 1.738 kn |
| 3 mph | 2.6069 kn |
| 4 mph | 3.4759 kn |
| 5 mph | 4.3449 kn |
| 6 mph | 5.2139 kn |
| 7 mph | 6.0828 kn |
| 8 mph | 6.9518 kn |
| 9 mph | 7.8208 kn |
| 10 mph | 8.6898 kn |
| 15 mph | 13.0346 kn |
| 20 mph | 17.3795 kn |
| 25 mph | 21.7244 kn |
| 30 mph | 26.0693 kn |
| 40 mph | 34.759 kn |
| 50 mph | 43.4488 kn |
| 75 mph | 65.1732 kn |
| 100 mph | 86.8976 kn |
| Knot | Mile per Hour |
|---|---|
| 1 kn | 1.1508 mph |
| 2 kn | 2.3016 mph |
| 3 kn | 3.4523 mph |
| 4 kn | 4.6031 mph |
| 5 kn | 5.7539 mph |
| 6 kn | 6.9047 mph |
| 7 kn | 8.0555 mph |
| 8 kn | 9.2062 mph |
| 9 kn | 10.357 mph |
| 10 kn | 11.5078 mph |
| 15 kn | 17.2617 mph |
| 20 kn | 23.0156 mph |
| 25 kn | 28.7695 mph |
| 30 kn | 34.5234 mph |
| 40 kn | 46.0312 mph |
| 50 kn | 57.539 mph |
| 75 kn | 86.3085 mph |
| 100 kn | 115.0779 mph |
About Mile per Hour (mph)
Unit of speed defined as exactly 1.609344 km/h (exactly 0.44704 meters per second).
History: Traditional imperial speed measurement standardized internationally in 1959.
Common Uses: Road speed limits and vehicle speedometers in the United States and United Kingdom.
About Knot (kn)
One nautical mile per hour, defined internationally as exactly 1.852 km/h (โ 0.5144 m/s).
History: Historically measured using a chip log on a knotted rope counted against an hourglass.
Common Uses: Maritime navigation, commercial aviation airspeeds, and meteorological storm tracking.
โ Frequently Asked Questions
How many Knots are in 1 Mile per Hour?
There are exactly 0.868976 Knots in 1 Mile per Hour (1 mph = 0.868976 kn).
What is the formula to convert Mile per Hour to Knot?
The formula is: Knot = Mile per Hour / 1.150779. Since 1 Knot = 1.150779 Miles per Hour, divide the value in Miles per Hour by 1.150779.
How do I convert 1 mph to kn manually?
To convert 1 mph to kn: apply the formula Knot = Mile per Hour / 1.150779. Substituting gives: 1 / 1.150779 = 0.869 kn.