Knots to mph converter

Free online knots to mph and speed converter. Convert between km/h, mph, m/s, knots, ft/s and Mach instantly.

How it works

Enter a value and select the starting unit to instantly convert between km/h, mph, m/s, knots, feet/second and Mach.

FAQ

How do I convert km/h to mph?

Divide km/h by 1.609. For example: 100 km/h = 62.14 mph.

What is a knot?

A knot is the speed unit used in maritime and aviation navigation. 1 knot = 1.852 km/h = 1 nautical mile/hour.

What is the Mach number?

Mach expresses speed relative to the speed of sound. Mach 1 = about 1235 km/h at sea level. Mach 2 is twice the speed of sound.