What this conversion means in practice
Land speeds in mph sometimes need knots for NOTAM-style comparisons, sailing crossover, or METAR wind discussions that still quote knots globally.
The exact relationship here is 1 mph = 0.868976241901 kn, consistent with expressing both units relative to meters per second (m/s).
How to convert mile per hour to knot
Multiply the mile per hour value by 0.868976241901 to get knot.
Example: 1 mph × 0.868976241901 = 0.868976241901 kn.
Mile per hour and Knot
This focused page locks to the unit pair above so you can quote or audit one factor without scrolling the full dropdown list. For context on other rows, open the parent converter from the site navigation.
Mile per hour to Knot conversion table
| Mile per hour (mph) | Knot (kn) |
|---|---|
| 0.1 mph | 0.08689762419 kn |
| 1 mph | 0.868976241901 kn |
| 2 mph | 1.737952483801 kn |
| 5 mph | 4.344881209503 kn |
| 10 mph | 8.689762419006 kn |
| 20 mph | 17.379524838013 kn |
| 50 mph | 43.448812095032 kn |
| 100 mph | 86.897624190065 kn |
Mile per hour to Knot FAQ
mph to knots when bridging road weather apps and aviation wind products.
How do I convert mph to kn?
Multiply the value in mph by 0.868976241901 to obtain kn. That factor is the ratio of the two units in the same base system as the site’s full converter.
Is this factor the same as the main converter tool?
Yes. The numeric relationship uses the same unit definitions and base normalization as the corresponding converter on CalcRegistry.
Why might my hand calculation differ slightly?
Rounding after intermediate steps, display precision limits, or mixing alternate definitions (for example different “horsepower” variants) can shift the last digits. Use this page’s factor end-to-end for consistency.