Miles per hour (mph) to Knots (kn) Conversion
Miles per hour
Miles per hour (mph) is the unit of speed used in road transport in the United States, United Kingdom, and a small number of other countries. One mile per hour equals approximately 1.60934 km/h or 0.44704 m/s. Speed limits on US interstate highways are commonly 65–75 mph, while the UK national speed limit is 70 mph.
Knots
The knot is a unit of speed equal to exactly one nautical mile per hour (1.852 km/h), the standard unit for maritime and aerial navigation worldwide. Its name derives from the historical practice of measuring ship speed using a knotted rope thrown overboard. Because the nautical mile is tied to the Earth's geometry (one arcminute of latitude), a ship at 1 knot crosses one arcminute of latitude per hour.
| Miles per hour (mph) | Knots (kn) |
|---|---|
| 0.1 mph | 0.0869 kn |
| 1 mph | 0.869 kn |
| 2 mph | 1.7379 kn |
| 3 mph | 2.6069 kn |
| 5 mph | 4.3449 kn |
| 10 mph | 8.6897 kn |
| 20 mph | 17.3795 kn |
| 30 mph | 26.0692 kn |
| 50 mph | 43.4487 kn |
| 100 mph | 86.8974 kn |
| 1000 mph | 868.9741 kn |
Frequently Asked Questions (FAQ)
How many knots are in 1 miles per hour?
1 miles per hour (mph) is exactly 0.868974 knots (kn).
How do I convert miles per hour to knots?
Multiply the value in miles per hour by 0.868974 to get the result in knots. Or use the converter above — type any number and see the result instantly.