Convert mph to kn instantly — formula, worked examples and a conversion table of common values.
Convert miles per hour (mph) to knots (kn). Enter a value on either side and the other updates instantly — nothing is sent to a server.
One mph equals 0.868976 kn. The table below lists the values people look up most often, and each one links to a page with the worked calculation.
kn = mph ÷ 1.150779| Miles per hour (mph) | Knot (kn) |
|---|---|
| 0.1 | 0.0868976 |
| 0.5 | 0.434488 |
| 1 | 0.868976 |
| 2 | 1.73795 |
| 3 | 2.60693 |
| 5 | 4.34488 |
| 10 | 8.68976 |
| 15 | 13.0346 |
| 20 | 17.3795 |
| 25 | 21.7244 |
| 50 | 43.4488 |
| 75 | 65.1732 |
| 100 | 86.8976 |
| 250 | 217.244 |
| 500 | 434.488 |
| 1,000 | 868.976 |
1 mph = 0.868976 kn.
10 mph = 8.6898 kn.
100 mph = 86.8976 kn.
Use the formula kn = mph ÷ 1.150779. Or type any value into the converter above — it works in both directions.