Speed
mph to knots Converter
1 mph = 0.86898 kn. Enter any value and the result updates instantly.
Convert
Accuracy and rounding
Useful for road speeds, cycling, running, marine speed, and travel planning. Round only after converting.
Speed units combine fixed distance definitions with the SI second, then display the result in distance per time.
For travel and sports, one decimal is usually readable. Keep more precision when converting specs or logs.
How to convert mph to knots
- Type the mph value in the calculator.
- Keep mph selected as the from unit and knots selected as the to unit.
- Use the instant result, or copy it with the copy button.
mph to knots chart
| mph | knots |
|---|---|
| 1 mph | 0.86898 kn |
| 2 mph | 1.738 kn |
| 5 mph | 4.3449 kn |
| 10 mph | 8.6898 kn |
| 25 mph | 21.7244 kn |
| 50 mph | 43.4488 kn |
| 100 mph | 86.8976 kn |
Formula
kn = mph x 0.868976241901
Example: 1 mph = 0.86898 kn.
Source
Speed units derived from exact length definitions and the SI second.
Common questions
How do I convert mph to knots?
Enter the mph value in the converter, or multiply by the factor shown in the formula. 1 mph = 0.86898 kn.
What should I watch out for?
Keep units clear: km/h, mph, knots, and m/s all describe distance over time.
Where does this speed conversion come from?
Speed units derived from exact length definitions and the SI second. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.