How to convert knots to miles per hour
Multiply the number of knots by 1.15078. That is all there is to it, because the factor between knots and miles per hour never changes.
Formula
mph = kn × 1.15078
Example: 25 knots × 1.15078 = 28.7695 miles per hour.
Knots to mph chart
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 0.5 kn | 0.57539 mph |
| 1 kn | 1.1508 mph |
| 2 kn | 2.3016 mph |
| 3 kn | 3.4523 mph |
| 4 kn | 4.6031 mph |
| 5 kn | 5.7539 mph |
| 6 kn | 6.9047 mph |
| 7 kn | 8.0555 mph |
| 8 kn | 9.2062 mph |
| 9 kn | 10.357 mph |
| 10 kn | 11.5078 mph |
| 15 kn | 17.2617 mph |
| 20 kn | 23.0156 mph |
| 25 kn | 28.7695 mph |
| 30 kn | 34.5234 mph |
| 40 kn | 46.0312 mph |
| 50 kn | 57.539 mph |
| 60 kn | 69.0468 mph |
| 70 kn | 80.5546 mph |
| 75 kn | 86.3085 mph |
| 80 kn | 92.0624 mph |
| 90 kn | 103.5702 mph |
| 100 kn | 115.0779 mph |
| 250 kn | 287.6949 mph |
| 500 kn | 575.3897 mph |
| 1,000 kn | 1,150.78 mph |
Values are rounded to at most four decimals. The converter above shows more digits.
About the units
One knot is 0.5144444444 meters per second.
One mile per hour is 0.44704 meters per second.
Need the other direction? Use the mph to Knots converter. For every speed unit at once, open the Speed Converter.
Frequently asked questions
How many miles per hour are in a knot?
There are 1.1508 miles per hour in one knot.
How do I convert knots to miles per hour?
Multiply the number of knots by 1.15078. For example: 25 knots × 1.15078 = 28.7695 miles per hour.
What is 40 knots in miles per hour?
40 knots equals 46.0312 miles per hour.