Convert miles per hour to knots
1 mph = 0.86897624 kn. Change the amount below, or read the formula and the reference table further down.
1 mile per hour equals
knots
1 mph = 0.86897624 kn
The formula
Miles per hour and knots both measure speed from the same zero, so a single multiplier does the job.
kn = mph × 0.8689762419
Going the other way? Convert knots to miles per hour.
Miles per hour to knots table
Common values, rounded for reading.
| Miles per hour (mph) | Knots (kn) |
|---|---|
| 1 | 0.868976 |
| 2 | 1.738 |
| 3 | 2.6069 |
| 4 | 3.4759 |
| 5 | 4.3449 |
| 6 | 5.2139 |
| 7 | 6.0828 |
| 8 | 6.9518 |
| 9 | 7.8208 |
| 10 | 8.6898 |
| 15 | 13.0346 |
| 20 | 17.3795 |
| 25 | 21.7244 |
| 30 | 26.0693 |
| 40 | 34.759 |
| 50 | 43.4488 |
| 75 | 65.1732 |
| 100 | 86.8976 |
| 250 | 217.24 |
| 500 | 434.49 |
| 1,000 | 868.98 |
Questions people ask
- How many knots are in a mile per hour?
- One mile per hour equals 0.8689762419 knots.
- How do I convert miles per hour to knots by hand?
- Multiply the number of miles per hour by 0.8689762419. For a rough check, 0.869 is close enough for most everyday use.
- What is 1 mile per hour in knots?
- 1 mile per hour is 0.86897624 knots.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.