Miles Per Hour to Knots Converter
How to convert miles per hour to knots
knots = miles per hour ÷ 1.15077945
To convert miles per hour to knots, divide the number of miles per hour by 1.15077945.
1 mph = 0.868976242 kn
Examples
- A mile a minute: 60 mph ÷ 1.15077945 = 52.1385745 kn
- 30 mph ÷ 1.15077945 = 26.0692873 kn
Good to know
One knot is about 1.15 mph, so add 15% to knots to estimate miles per hour. The difference arises because a nautical mile (1,852 m) is longer than a statute mile (1,609.344 m).
Miles per hour to knots conversion table
| Miles per hour (mph) | Knots (kn) |
|---|---|
| 5 mph | 4.34488121 kn |
| 10 mph | 8.68976242 kn |
| 15 mph | 13.0346436 kn |
| 20 mph | 17.3795248 kn |
| 25 mph | 21.724406 kn |
| 30 mph | 26.0692873 kn |
| 35 mph | 30.4141685 kn |
| 40 mph | 34.7590497 kn |
| 45 mph | 39.1039309 kn |
| 50 mph | 43.4488121 kn |
| 55 mph | 47.7936933 kn |
| 60 mph | 52.1385745 kn |
| 65 mph | 56.4834557 kn |
| 70 mph | 60.8283369 kn |
| 75 mph | 65.1732181 kn |
| 80 mph | 69.5180994 kn |
| 100 mph | 86.8976242 kn |
| 120 mph | 104.277149 kn |
Unit definitions
- Mile per hour (mph)
- A mile per hour is a speed of one international mile (1,609.344 meters) traveled in one hour, exactly 0.44704 meters per second. It is the unit on road signs in the United States and the United Kingdom.
- Knot (kn)
- A knot is one nautical mile (exactly 1,852 meters) per hour, about 0.5144 meters per second. It is the standard unit of speed in shipping, sailing and aviation.