Instantly convert miles per hour (mph) to knots (kn). Bidirectional, accurate, and free.
To convert miles per hour to knots, use the formula knots = miles per hour × 0.869. For example, 2 miles per hour equals 1.738 knots. Type any number into the calculator above and the result appears instantly — you can also type into the knots box to convert the other way.
| Miles per hour | Knots |
|---|---|
| 10 mph | 8.6898 kn |
| 20 mph | 17.3795 kn |
| 30 mph | 26.0693 kn |
| 40 mph | 34.759 kn |
| 50 mph | 43.4488 kn |
| 60 mph | 52.1386 kn |
| 70 mph | 60.8283 kn |
| 80 mph | 69.5181 kn |
There are 0.869 knots in one mile per hour. To convert any value, apply the formula knots = miles per hour × 0.869.
The formula is knots = miles per hour × 0.869. Enter a value above and the result updates instantly in both directions.
Yes. It uses the exact internationally-defined conversion factor, so results match official standards to several decimal places.
Yes — the converter is bidirectional. Type in either box and the other updates automatically using the inverse formula.