How to convert miles per hour to knots
One mile per hour equals 0.868976 knots. To convert, multiply the number of miles per hour by 0.868976 (or divide by 1.150779):
Mental-math shortcut: Multiply by 0.87 (subtract about 13%): 30 mph ≈ 26 kn.
Example
Convert 30 miles per hour to knots: 30 mph × 0.868976 = 26.0693 kn.
mph to Knots conversion chart
| mph (mph) | Knots (kn) |
|---|---|
| 1 | 0.868976 |
| 5 | 4.3449 |
| 10 | 8.6898 |
| 15 | 13.0346 |
| 20 | 17.3795 |
| 25 | 21.7244 |
| 30 | 26.0693 |
| 40 | 34.759 |
| 50 | 43.4488 |
| 60 | 52.1386 |
| 74 (hurricane) | 64.3042 |
| 100 | 86.8976 |
| 150 | 130.35 |
| 200 | 173.8 |
What is a mile per hour?
Miles per hour (mph) is used for speed limits in the United States and the United Kingdom. One mile per hour equals exactly 1.609344 km/h, so 60 mph is about 96.6 km/h.
What is a knot?
A knot (kn or kt) is one nautical mile per hour — exactly 1.852 km/h, or about 1.151 mph. Knots are the standard speed unit at sea and in aviation, and for wind speed in marine and aviation weather forecasts. A nautical mile is based on one minute of latitude.
Converting the other way? Use the Knots to mph converter.
Frequently asked questions
How many knots is one mile per hour?
One mile per hour is 0.868976 knots.
How do I convert miles per hour to knots?
Multiply the value in miles per hour by 0.868976. For example, 30 mph × 0.868976 = 26.0693 kn.
What is 60 mph in knots?
60 mph is 52.1386 knots.
How do I convert knots to miles per hour?
Multiply knots by 1.150779 (or divide by 0.868976). You can also use our Knots to mph converter.
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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