Knots to Miles Per Hour Converter
How to convert knots to miles per hour
miles per hour = knots × 1.15077945
To convert knots to miles per hour, multiply the number of knots by 1.15077945.
1 kn = 1.15077945 mph
Examples
- 10 kn × 1.15077945 = 11.5077945 mph
- 30 kn × 1.15077945 = 34.5233834 mph
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).
Knots to miles per hour conversion table
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 1 kn | 1.15077945 mph |
| 5 kn | 5.75389724 mph |
| 10 kn | 11.5077945 mph |
| 15 kn | 17.2616917 mph |
| 20 kn | 23.015589 mph |
| 25 kn | 28.7694862 mph |
| 30 kn | 34.5233834 mph |
| 35 kn | 40.2772807 mph |
| 40 kn | 46.0311779 mph |
| 50 kn | 57.5389724 mph |
| 60 kn | 69.0467669 mph |
| 100 kn | 115.077945 mph |
| 150 kn | 172.616917 mph |
| 250 kn | 287.694862 mph |
| 450 kn | 517.850752 mph |
| 500 kn | 575.389724 mph |
Unit definitions
- 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.
- 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.