How to convert knots to miles per hour
mph = kn × 1.150779448Multiply the value in knots by 1.150779448. To go the other way, multiply by 0.8689762419 (or divide by 1.150779448).
A knot is larger than a mile per hour: one knot contains 1.150779448 miles per hour.
Worked examples
- 1 knot1 kn × 1.150779448 = 1.150779448 mph
- 5 knots5 kn × 1.150779448 = 5.75389724 mph
- 10 knots10 kn × 1.150779448 = 11.50779448 mph
- 20 knots20 kn × 1.150779448 = 23.01558896 mph
- 100 knots100 kn × 1.150779448 = 115.0779448 mph
Knots to miles per hour conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 0.1 kn | 0.11507794 mph |
| 0.25 kn | 0.28769486 mph |
| 0.5 kn | 0.57538972 mph |
| 1 kn | 1.1507794 mph |
| 2 kn | 2.3015589 mph |
| 3 kn | 3.4523383 mph |
| 4 kn | 4.6031178 mph |
| 5 kn | 5.7538972 mph |
| 6 kn | 6.9046767 mph |
| 7 kn | 8.0554561 mph |
| 8 kn | 9.2062356 mph |
| 9 kn | 10.357015 mph |
| 10 kn | 11.507794 mph |
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 12 kn | 13.809353 mph |
| 15 kn | 17.261692 mph |
| 20 kn | 23.015589 mph |
| 25 kn | 28.769486 mph |
| 30 kn | 34.523383 mph |
| 40 kn | 46.031178 mph |
| 50 kn | 57.538972 mph |
| 75 kn | 86.308459 mph |
| 100 kn | 115.07794 mph |
| 250 kn | 287.69486 mph |
| 500 kn | 575.38972 mph |
| 1,000 kn | 1,150.7794 mph |
About the units
Knot (kn)
One nautical mile per hour (about 1.15 mph). The standard speed unit for ships, aircraft and wind reports. One knot equals 0.5144444444 meters per second (m/s).
Mile per hour (mph)
Exactly 0.44704 m/s. Used for road speeds in the US and UK; 60 mph is about 96.6 km/h.
Frequently asked questions
How many miles per hour are in one knot?
There are 1.150779448 miles per hour in one knot, and this value is exact by definition.
How do I convert knots to miles per hour?
Multiply the number of knots by 1.150779448. For example, 10 kn × 1.150779448 = 11.50779448 mph.
How many knots are in one mile per hour?
One mile per hour equals 0.8689762419 knots. That is the reverse factor, 1 ÷ 1.150779448.
What is 10 knots in miles per hour?
10 kn = 11.50779448 mph.
Is this kn to mph converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.