1 kn equals 1.15078 mph. To convert kn to mph, multiply the value by 1.15078; divide by 1.15078 to convert back. Enter any number above and the result appears instantly — free and entirely in your browser.
How do you convert kn to mph?
The conversion formula is mph = kn × 1.15078. The conversion factor is fixed by definition, so the result is always exact.
kn to mph conversion table
| kn | mph |
|---|---|
| 10 kn | 11.5078 mph |
| 30 kn | 34.5234 mph |
| 50 kn | 57.539 mph |
| 80 kn | 92.0624 mph |
| 100 kn | 115.078 mph |
| 130 kn | 149.601 mph |
What is kn (kn)?
The knot (kn) is one nautical mile per hour — exactly 1.852 km/h. It is the standard speed unit in shipping and aviation, and for wind in marine forecasts.
What is mph (mph)?
Miles per hour (mph) is the road-speed unit in the US and UK. One mph equals exactly 1.609344 km/h — a 70 mph motorway limit is about 113 km/h.
Why convert kn to mph?
Road speeds are posted in km/h in most countries but in mph in the US and UK; shipping and aviation use knots, physics and wind data use metres per second. Converting between them is routine for travel, sailing and sport.
One knot is exactly 1.852 km/h — one international nautical mile (1,852 m, standardised in 1929) per hour. And 100 km/h equals 62.137 mph or 27.778 m/s.
How to convert kn to mph
- Enter the value in kn into the left field of the converter.
- Read the result in mph instantly in the right field — it updates automatically.
- Use the swap button to reverse the direction (mph to kn).
The converter runs entirely in your browser: no uploads, no queue, no limits. You can even use it offline.