Knots to mph (Knots to Miles per Hour) Converter
1 knot equals 1.150779 miles per hour — multiply knots by 1.150779 to convert. A knot is one nautical mile (1.852 km) per hour, and since a statute mile is 1.609344 km, each knot works out to about 1.15 mph.
The formula
Multiply the knot value by 1.150779 to get miles per hour:
mph = kn × 1.150779
For example, 20 kn × 1.150779 = 23.01558 mph. To reverse, divide mph by 1.150779 (or multiply by 0.86897624).
Conversion table
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 1 | 1.150779 |
| 2 | 2.301558 |
| 5 | 5.753895 |
| 10 | 11.50779 |
| 25 | 28.769475 |
| 50 | 57.53895 |
| 100 | 115.0779 |
| 500 | 575.3895 |
| 1000 | 1150.779 |
How to convert online
- Type the number of knots in the first box.
- Read the miles-per-hour result instantly in the second box.
- Enter an mph value to convert the other way — it works both directions.
Use the Knot to Mile per Hour Converter — free and instant in your browser.
Where this conversion is used
Boaters, pilots, and hurricane watchers in the United States often need to translate knots into the familiar mph used on roads and in general weather reports. This is the go-to conversion for making a vessel's or aircraft's speed, or a storm's wind speed, intuitive to an audience that thinks in miles per hour.
FAQ
How many mph are in a knot?
One knot equals 1.150779 mph. Multiply the knot figure by 1.150779 — for example, 10 kn = 11.50779 mph.
What is the formula to convert knots to mph?
Use mph = kn × 1.150779. The tool applies this exact factor automatically so you never round by hand.
How do I convert mph back to knots?
Divide by 1.150779, or multiply by 0.86897624. For instance, 11.50779 mph = 10 kn.
Is the conversion exact?
The factor comes from the exact nautical (1852 m) and statute (1609.344 m) mile definitions; 1.150779 is that ratio rounded to six places.
Related converters
- Mile per Hour to Knot Converter
- Knot to Meter per Second Converter
- Knot to Kilometer per Hour Converter
- Knot to Foot per Second Converter
Built by ByteVancer
ByteTools is a free product of ByteVancer, a software and web development studio. If you need custom tools, web apps, or engineering help for your business, ByteVancer builds fast, privacy-friendly software — get in touch to see how we can help.
Recommended reading
Meters per Second to Miles per Hour (m/s to mph)
1 m/s = 2.236936 mph. Multiply meters per second by 2.236936 to convert, with a formula, a conversion table and worked examples.
Meters per Second to Knots (m/s to kn) Converter
1 m/s = 1.943844 knots. Multiply meters per second by 1.943844 to convert, with a formula, a conversion table and worked examples.
Meters per Second to Kilometers per Hour (m/s to km/h)
1 m/s = 3.6 km/h. Multiply meters per second by 3.6 to convert speed, with a formula, a conversion table and worked examples.
Meters per Second to Feet per Second (m/s to ft/s)
1 m/s = 3.28084 ft/s. Multiply meters per second by 3.28084 to get feet per second. Free formula, table and instant converter.