Convert Knots (kn) to Miles per hour (mph)
Enter a value below to convert Knots (kn) to Miles per hour (mph).
Conversion:
1 Knots (kn) = 1.1507784538 Miles per hour (mph)
How to Convert Knots (kn) to Miles per hour (mph)
1 kn = 1.1507784538 mph
1 mph = 0.86897699264 kn
Example: convert 15 Knots (kn) to Miles per hour (mph):
25 kn = 28.769461346 mph
Knots (kn) to Miles per hour (mph) Conversion Table
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 0.01 kn | 0.011507784538 mph |
| 0.1 kn | 0.11507784538 mph |
| 1 kn | 1.1507784538 mph |
| 2 kn | 2.3015569077 mph |
| 3 kn | 3.4523353615 mph |
| 5 kn | 5.7538922691 mph |
| 10 kn | 11.507784538 mph |
| 20 kn | 23.015569077 mph |
| 50 kn | 57.538922691 mph |
| 100 kn | 115.07784538 mph |
| 1000 kn | 1150.7784538 mph |
Knots (kn)
Definition
A knot (kn) is a unit of speed equal to one nautical mile per hour (approximately 1.852 km/h or 1.151 mph). It is derived from maritime navigation practices.
History
The knot originated from a 17th-century method of measuring ship speed by counting knots on a rope paid out over a fixed time from a 'chip log'. The practice gave rise to the unit name that persists today.
Current use
Knots are the standard speed unit in maritime and aviation navigation worldwide. Air traffic control, ship navigation, weather reports for marine and aviation use, and ocean current speeds all use knots.
Miles per hour (mph)
Definition
Miles per hour (mph) is an imperial unit of speed expressing the number of statute miles traveled in one hour. 1 mph ≈ 1.60934 km/h.
History
Miles per hour became the standard speed unit as horse-drawn transport gave way to automobiles in the early 20th century. The United States and United Kingdom adopted mph for their road systems.
Current use
Miles per hour is the official unit for road speed limits and vehicle speedometers in the United States, United Kingdom, and a few other countries. It is also used in baseball (pitch speed) and informal speed references.