Mile per hour to Knot Converter
1 mph = 0.868976 kn — convert instantly with formula and table.
Use the converter above for an immediate result — it recalculates on every keystroke and works offline once the page has loaded.
Quick answer: one mile per hour equals 0.868976 knots. So to convert miles per hour to knots, multiply by 0.86897624.
How to convert miles per hour to knots
knots = miles per hour × 0.868976242
Miles per hour governs road speeds in the US and UK. One mph is exactly 1.609344 km/h.
The knot — one nautical mile per hour — is the speed unit of ships, aircraft and wind. It ties neatly to navigation because one nautical mile is one minute of latitude.
Mile per hour to Knot conversion table
| Mile per hour (mph) | Knot (kn) |
|---|---|
| 0.01 mph | 0.00869 kn |
| 0.1 mph | 0.086898 kn |
| 0.25 mph | 0.217244 kn |
| 0.4 mph | 0.34759 kn |
| 0.75 mph | 0.651732 kn |
| 1.25 mph | 1.0862 kn |
| 1.75 mph | 1.5207 kn |
| 2.5 mph | 2.1724 kn |
| 3.5 mph | 3.0414 kn |
| 4.5 mph | 3.9104 kn |
| 6 mph | 5.2139 kn |
| 8 mph | 6.9518 kn |
| 10 mph | 8.6898 kn |
| 12 mph | 10.4277 kn |
| 14 mph | 12.1657 kn |
| 16 mph | 13.9036 kn |
| 18 mph | 15.6416 kn |
| 20 mph | 17.3795 kn |
| 24 mph | 20.8554 kn |
| 26 mph | 22.5934 kn |
| 30 mph | 26.0693 kn |
| 35 mph | 30.4142 kn |
| 45 mph | 39.1039 kn |
| 55 mph | 47.7937 kn |
| 65 mph | 56.4835 kn |
| 75 mph | 65.1732 kn |
| 85 mph | 73.863 kn |
| 95 mph | 82.5527 kn |
| 110 mph | 95.5874 kn |
| 125 mph | 108.622 kn |
| 175 mph | 152.0708 kn |
| 250 mph | 217.2441 kn |
| 350 mph | 304.1417 kn |
| 450 mph | 391.0393 kn |
| 600 mph | 521.3857 kn |
| 750 mph | 651.7322 kn |
| 900 mph | 782.0786 kn |
| 1,500 mph | 1,303.46 kn |
| 2,500 mph | 2,172.44 kn |
| 10,000 mph | 8,689.76 kn |
Need the opposite direction? Use the Knot to Mile per hour converter, or read our complete guide to speed conversions for every formula in one place.
Frequently asked questions
How many knots are in one mile per hour?
One mile per hour equals 0.868976 knots. Multiply any mile per hour value by 0.86897624 to get knots.
What is 10 miles per hour in knots?
10 miles per hour equal 8.6898 knots (10 × 0.868976).
Is the mile per hour to knot conversion exact?
The conversion factor used here (0.868976242) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.