Knots to km/h Converter

Convert speeds between knots, km/h, mph and m/s.

Calculations run locally in your browser; nothing is sent to a server.

Formula and method

1 kt = 1.852 km/h (exact); 1 mph = 1.609344 km/h; 1 m/s = 3.6 km/h.

450 kt = 833.4 km/h = 517.9 mph.