How to convert knots to miles per hour
Knots and Miles per Hour both measure speed, so converting is a single multiplication. One kn equals 1.150778 mph, so you multiply your knots value by 1.150778.
Formula: miles per hour = knots × 1.150778. For example, 10 kn = 11.507785 mph.
Knots to Miles per Hour conversion table
| Knots (kn) | Miles per Hour (mph) |
|---|---|
| 1 | 1.150778 |
| 2 | 2.301557 |
| 5 | 5.753892 |
| 10 | 11.507785 |
| 25 | 28.769461 |
| 50 | 57.538923 |
| 100 | 115.077845 |
| 1,000 | 1,150.778454 |
Knots and Miles per Hour explained
Knots (kn): One nautical mile per hour, used in aviation and shipping.
Miles per Hour (mph): The imperial speed unit for vehicles in the US and UK.
When you'd convert knots to miles per hour
You'll convert knots to miles per hour whenever a measurement is given in one unit but you need it in the other — comparing knots and miles per hour figures across regions, following a recipe or spec, or double-checking a number. Because 1 kn is exactly 1.150778 mph, the result is precise every time.
Frequently asked questions
How many miles per hour are in a knot?
One kn equals 1.150778 mph. Multiply your knots figure by 1.150778 to get miles per hour.
What is the formula to convert knots to miles per hour?
miles per hour = knots × 1.150778. The factor 1.150778 is exact.
What is 2 knots in miles per hour?
2 kn = 2.301557 mph. You can enter any value in the converter above to get an instant result.
Is this Knots to Miles per Hour converter accurate?
Yes. It uses the standard conversion factor (1 kn = 1.150778 mph) defined by BIPM — SI Brochure (derived units), so results are exact to several decimal places.