UsefulTab
Knots to Mph Converter
Convert knots to miles per hour instantly, with km/h and m/s alongside.
Enter a speed to convert it
Enter a speed and pick its unit. Every other unit is calculated live as you type — right here in your browser, with nothing sent to a server.
Runs entirely in your browserEnjoying this tool?
UsefulTab is free, with no sign-up and no limits. If it saved you some time, you can treat me to something small from my wishlist — totally optional.
How to convert knots to mph
A knot is one nautical mile (exactly 1,852 meters) per hour, which is about 1.15078 miles per hour. Multiply knots by 1.15078 to get mph: 30 kn × 1.15078 = 34.52 mph. Knots are used at sea, in aviation and in wind forecasts. The converter above also shows km/h (1 kn = 1.852 km/h) and m/s.
Knots to miles per hour table
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 1 kn | 1.1508 mph |
| 5 kn | 5.7539 mph |
| 10 kn | 11.5078 mph |
| 20 kn | 23.0156 mph |
| 30 kn | 34.5234 mph |
| 50 kn | 57.539 mph |
Common questions
Why are knots faster than mph?
A nautical mile (1,852 m) is longer than a statute mile (1,609.344 m), so 1 knot is about 1.15 mph.
What is 1 knot in km/h?
Exactly 1.852 km/h.
What is 20 knots of wind in mph?
20 knots is about 23.02 mph, or 37.04 km/h.