1 knot equals about
1.151 mph
The knot (kn) and miles per hour (mph) are both speed units based on the concept of a 'mile', but they use different miles: the knot uses the nautical mile (1,852 m), while mph uses the statute mile (1,609.344 m). Because of this, a knot is slightly faster than an mph.
To convert a measurement from knots to mph, simply multiply the value in knots by 1.1508:
To convert from mph to knots, perform the inverse operation, dividing by 1.1508:
This conversion is widely used in sailing, boating, and aviation, where speeds are typically reported in knots, and pilots or sailors need to compare these figures with the mph readings more familiar from everyday driving.