Convert Knot to Mile per hour
Convert Knot to Mile per hour instantly. 1 kn = 1.150778 mph. Formula, worked examples and a quick reference table.
Last updated
One knot equals 1.150778 mile per hour. To convert any number of knots to mile per hours, multiply by 1.15077845.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Knot to Mile per hour formula
To go the other way, use knot = mile per hour ÷ 1.15077845.
About these units
One knot is one nautical mile per hour. The name comes from the knotted rope once trailed behind a ship to measure its speed.
Knot to Mile per hour conversion table
| Knot | Mile per hour |
|---|---|
| 1 kn | 1.1508 mph |
| 2 kn | 2.3016 mph |
| 3 kn | 3.4523 mph |
| 5 kn | 5.7539 mph |
| 10 kn | 11.5078 mph |
| 20 kn | 23.0156 mph |
| 25 kn | 28.7695 mph |
| 50 kn | 57.5389 mph |
| 100 kn | 115.0778 mph |
| 250 kn | 287.6946 mph |
| 500 kn | 575.3892 mph |
| 1,000 kn | 1,150.7785 mph |
Frequently asked questions
How many mile per hours are in a knot? +
There are 1.150778 mile per hours in one knot.
What is 10 kn in mph? +
10 kn equals 11.5078 mph. Multiply 10 by 1.15077845.
How do I convert mile per hour back to knot? +
Use knot = mile per hour ÷ 1.15077845. The converter above handles both directions, or see our dedicated Mile per hour to Knot page.