Convert Mile per Hour to Knot
Use this free converter to change miles per hour (mph) into knots (kn). Mile per hour and knot both measure speed. As a quick reference, 1 mph equals 0.86897624 kn, and 1 kn equals 1.1507794 mph.
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Knot (kn)
0.86897624
1 mph = 0.86897624 kn
Speed conversion table
| Mile per Hour | Knot |
|---|---|
| 0.01 | 0.0086897624 |
| 0.1 | 0.086897624 |
| 0.5 | 0.43448812 |
| 1 | 0.86897624 |
| 2 | 1.7379525 |
| 3 | 2.6069287 |
| 5 | 4.3448812 |
| 10 | 8.6897624 |
| 20 | 17.379525 |
| 25 | 21.724406 |
| 50 | 43.448812 |
| 100 | 86.897624 |
| 1,000 | 868.97624 |
How to convert Mile per Hour to Knot
Multiply the mile per hour value by 0.86897624 to get knots.
- Enter the number of miles per hour you want to convert.
- The converter instantly shows the equivalent value in knots.
- Worked example: 15 mph × 0.86897624 = 13.034644 kn.
- Use the swap button to reverse the conversion (knot to mile per hour).
About these units
Mile per Hour (mph)
- Definition
- A mile per hour (mph) expresses speed as the number of miles travelled in one hour.
- History
- It developed with road and rail travel in Britain and the United States.
- Current use
- Miles per hour are used for speed limits and vehicle speeds in the US and UK.
Knot (kn)
- Definition
- A knot (kn) is a speed of one nautical mile per hour, about 1.852 km/h.
- History
- The name comes from knotted ropes once used to measure a ship’s speed at sea.
- Current use
- Knots are used in marine and air navigation and in meteorology for wind speed.
Frequently asked questions
How many knots are in a mile per hour?
There are 0.86897624 kn in 1 mph. To convert, multiply the number of miles per hour by 0.86897624.
How do I convert miles per hour to knots?
Multiply the mile per hour value by 0.86897624 to get knots. For example, 10 mph = 8.6897624 kn.
Is this mile per hour-to-knot converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Mile per Hour to other speed units
| Unit | 1 Mile per Hour equals |
|---|---|
| Meter per Second (m/s) | 0.44704 m/s |
| Kilometer per Hour (km/h) | 1.609344 km/h |
| Knot (kn) | 0.86897624 kn |
| Foot per Second (ft/s) | 1.4666667 ft/s |
| Mach (Ma) | 0.0013033236 Ma |