How to convert knots to mph
Multiply kn by 1.150779448 to get mph. The displayed factor is rounded; the calculator uses the full stored conversion factor.
A knot is one nautical mile per hour; a nautical mile is exactly 1,852 meters. MPH uses the shorter statute mile.
Worked example
20 kn = 23.0155889605 mph. To reverse it, enter the unrounded output and select Swap units. Round only the final result; converting an already-rounded result back may not reproduce the original exactly.
Conversion table in both directions
| Input | kn → mph | mph → kn |
|---|---|---|
| 1 | 1.150779448 | 0.8689762419 |
| 2 | 2.301558896 | 1.7379524838 |
| 5 | 5.7538972401 | 4.3448812095 |
| 10 | 11.5077944802 | 8.689762419 |
| 20 | 23.0155889605 | 17.379524838 |
| 25 | 28.7694862006 | 21.7244060475 |
| 50 | 57.5389724012 | 43.448812095 |
| 100 | 115.0779448024 | 86.8976241901 |
| 500 | 575.3897240118 | 434.4881209503 |
| 1000 | 1,150.7794480235 | 868.9762419006 |