Knots to MPH

A knot is one nautical mile per hour (1. 852 km/h ≈ 1

The calculator uses the standard published formula for knots mph. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, kilometres, miles per hour, kilometres per hour. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: 1 knot = 1.15078 mph = 1.852 km/h. Each step in the calculation is shown so you can verify the result manually.