Handy Units
mph to Knotsmph → kn
1 mph = 0.868976 kn · 1 kn = 1.15078 mph
Formula
kn ≈ mph ÷ 1.15078
Example: 55 mph = 55 ÷ 1.15078 = 47.7937 kn
These units differ only by a fixed factor: multiply by it to convert, divide to go back. The factors are exact international definitions (for example 1 inch = 2.54 cm exactly); results are rounded only for display.
mph and Knots chart
| mph (mph) | Knots (kn) |
|---|---|
| 10 mph | 8.68976 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 |
| 55 mph | 47.7937 kn |
| 60 mph | 52.1386 kn |
| 65 mph | 56.4835 kn |
| 70 mph | 60.8283 kn |
| 80 mph | 69.5181 kn |
| 100 mph | 86.8976 kn |
| Knots (kn) | mph (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 |
| 50 kn | 57.539 mph |
| 100 kn | 115.078 mph |
| 500 kn | 575.39 mph |
About these units
Miles per hour (mph)Miles per hour, used in the US and UK: 1 mph ≈ 1.609 km/h.
Knot (kn)1 knot = 1 nautical mile per hour = 1.852 km/h, used at sea and in aviation.
Questions
How many Knots are in 1 mph?
1 mph = 0.868976 kn.
How many mph are in 1 Knots?
1 kn = 1.15078 mph.