A knot is a unit of speed equal to one nautical mile per hour, approximately 1.15078 statute miles per hour. Knots are primarily used in maritime navigation and aviation. Miles per hour (MPH) is the standard unit of speed measurement in the United States and some other countries.
| Knots | MPH |
|---|---|
| 1 | 1.15078 |
| 5 | 5.75389 |
| 10 | 11.5078 |
| 20 | 23.0156 |
| 50 | 57.5389 |
To convert knots to miles per hour, multiply the knots value by 1.15078.
Formula: MPH = Knots × 1.15078
Let's convert 25 knots to MPH:
25 knots × 1.15078 = 28.7695 MPH
Knots are commonly used in:
The term "knot" dates back to the 17th century when sailors measured speed by dropping a log-line with knots tied at regular intervals off the back of the ship. They would count the number of knots that passed through their hands in a specific time to determine the ship's speed.