Miles per Hour to Knots Converter
Convert miles per hour (mph) to knots (kn), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a speed, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 mph = 0.868976241901 kn
- 1 × 0.868976241901 = 0.868976241901 kn
How to convert miles per hour to knots
1 mph = 0.868976241901 kn, so multiply by 0.868976241901 to go from miles per hour to knots. Going the other way, 1 kn = 1.15077944802 mph.
kn = mph × 0.868976241901 mph = kn × 1.15077944802
Worked example:
1 mph = 0.868976241901 kn 5 × 0.868976241901 = 4.3448812095 kn
Miles per Hour to knots table
| Miles per Hour | Knots |
|---|---|
| 1 mph | 0.868976241901 kn |
| 2 mph | 1.7379524838 kn |
| 3 mph | 2.6069287257 kn |
| 4 mph | 3.4759049676 kn |
| 5 mph | 4.3448812095 kn |
| 6 mph | 5.2138574514 kn |
| 7 mph | 6.0828336933 kn |
| 8 mph | 6.95180993521 kn |
| 9 mph | 7.82078617711 kn |
| 10 mph | 8.68976241901 kn |
| 15 mph | 13.0346436285 kn |
| 20 mph | 17.379524838 kn |
| 25 mph | 21.7244060475 kn |
| 30 mph | 26.069287257 kn |
| 40 mph | 34.759049676 kn |
| 50 mph | 43.448812095 kn |
| 75 mph | 65.1732181425 kn |
| 100 mph | 86.8976241901 kn |
| 250 mph | 217.244060475 kn |
| 500 mph | 434.48812095 kn |
| 1000 mph | 868.976241901 kn |
About the units
- Miles per Hour (mph)
- Miles per hour, a US customary unit. Definition: NIST Handbook 44 (2024), Appendix C: General Tables of Units of Measurement.
- Knots (kn)
- Knots, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.