how fast is a knot in miles per hour
1 knot = 1.15077945 miles per hour. A knot is a speed of 1 nautical mile per hour. A nautical mile has been defined in slightly varying ways over time. It is based on the distance traveled in moving 1 minute of arc along any meridian. Since the Earth is not a perfect sphere, the exact distance changes from place to place.
The knot (/nÉt/) is a unit of speed equal to one nautical mile (1.852 km) per hour, approximately 1.151 mph. The ISO Standard symbol for the knot is kn. The same symbol is preferred by the IEEE; kt is also common. The knot is a non-SI unit that is accepted for use with the SI.