Convert miles per hour to knots
Enter a value in miles per hour (mph) to get knots (kn). One mile per hour is 0.868976 knots; one knot is 1.1508 miles per hour.
How to use the Mile per hour to knot
- Type the number of miles per hour.
- Click Convert.
- Read the result in knots, plus the same value in every other speed unit.
mph to kn formula
knots = miles per hour × 0.868976. To go the other way, miles per hour = knots × 1.1508 (see knots to miles per hour).
Worked example
12 mph × 0.868976 = 10.4277 kn.
Miles per hour to knots conversion table
| Miles per hour | Knots |
|---|---|
| 0.1 mph | 0.086898 kn |
| 0.5 mph | 0.434488 kn |
| 1 mph | 0.868976 kn |
| 2 mph | 1.738 kn |
| 3 mph | 2.6069 kn |
| 5 mph | 4.3449 kn |
| 10 mph | 8.6898 kn |
| 20 mph | 17.3795 kn |
| 25 mph | 21.7244 kn |
| 50 mph | 43.4488 kn |
| 100 mph | 86.8976 kn |
| 250 mph | 217.2441 kn |
| 500 mph | 434.4881 kn |
| 1,000 mph | 868.9762 kn |
About the mile per hour
Road speed limits in the USA and UK; exactly 1.609344 km/h.
About the knot
One nautical mile per hour, about 1.852 km/h. Ships, aircraft and wind at sea.
Related conversions
knots to miles per hour · miles per hour to kilometres per hour · miles per hour to feet per second · any unit.
Frequently asked questions
How many knots in a mile per hour?
0.868976 knots.
How many miles per hour in a knot?
1.1508 miles per hour.
Is the factor exact?
The factor 0.868976 is derived from the units' exact definitions; only the display is rounded.
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Last updated 2026-09-23.