Miles per hour to Knots formula
knots = miles per hour × 0.868976
Multiply the number of miles per hour by 0.868976 to get knots. To go the other way, multiply by 1.15078 instead, or use the knots to mph converter.
Miles per hour to Knots conversion table
Common mph to knots values, rounded for reading. The converter above keeps full precision.
| Miles per hour | Knots |
|---|---|
| 1 mph | 0.868976 kn |
| 2 mph | 1.73795 kn |
| 3 mph | 2.60693 kn |
| 4 mph | 3.4759 kn |
| 5 mph | 4.34488 kn |
| 10 mph | 8.68976 kn |
| 15 mph | 13.0346 kn |
| 20 mph | 17.3795 kn |
| 25 mph | 21.7244 kn |
| 50 mph | 43.4488 kn |
| 75 mph | 65.1732 kn |
| 100 mph | 86.8976 kn |
| 250 mph | 217.244 kn |
| 500 mph | 434.488 kn |
| 1,000 mph | 868.976 kn |
Worked example
To convert 10 mph to knots, multiply by 0.868976: the result is 8.68976 kn. One knot is exactly one nautical mile per hour. A nautical mile is exactly 1,852 meters, so 1 knot equals 1.150779448 mph and 1.852 km/h.
Frequently asked questions
How many knots are in a mile per hour?
One mile per hour equals 0.868976 knots (1 mph = 0.868976 kn).
What is 10 miles per hour in knots?
10 mph converts to 8.68976 kn. Enter any other value in the converter above to see it recalculated instantly.
How do I convert knots back to miles per hour?
Reverse the calculation: one knot equals 1.15078 miles per hour. You can also swap the units in the converter or open the knots to mph page.
Related speed conversions
Need a different pair? Open the full speed converter to choose any two units.