Convert Knots to Miles Per Hour
1 kn = 1.150779 mph. Enter any value below.
Converted to every unit
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Knots to Miles Per Hour formula
mph = kn × 1.150779
A knot is one nautical mile per hour, used in aviation and shipping. Miles per hour is the speed unit used on US and UK roads.
Worked example
To convert 5 kn, multiply by 1.150779: 5 kn × 1.150779 = 5.753897 mph.
Knots to Miles Per Hour conversion table
| Knots | Miles Per Hour |
|---|---|
| 1 kn | 1.150779 mph |
| 2 kn | 2.301559 mph |
| 3 kn | 3.452338 mph |
| 4 kn | 4.603118 mph |
| 5 kn | 5.753897 mph |
| 6 kn | 6.904677 mph |
| 7 kn | 8.055456 mph |
| 8 kn | 9.206236 mph |
| 9 kn | 10.357015 mph |
| 10 kn | 11.507794 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 | 115.077945 mph |
| 250 kn | 287.694862 mph |
| 500 kn | 575.389724 mph |
| 1,000 kn | 1,150.7794 mph |
Frequently asked questions
How many miles per hour are in a knot?
1 kn equals 1.150779 mph.
How do I convert knots to miles per hour?
Use the formula mph = kn × 1.150779. For example, 5 kn = 5.753897 mph.
Last reviewed: October 2026 · Uses exact, internationally defined conversion factors.