Convert between kilometers per hour, miles per hour, meters per second, and knots.
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Common Speed Conversions
1 km/h= 0.6214 mph
1 mph= 1.6093 km/h
1 m/s= 3.6 km/h
1 knot= 1.852 km/h
1 knot= 1.151 mph
FAQ
A knot is one nautical mile per hour (1.852 km/h). It is used in maritime and aviation navigation. The term comes from the practice of measuring ship speed by counting knots on a rope.
A quick estimate: multiply km/h by 0.6 to get mph, or divide by 1.6. For example, 100 km/h is about 62 mph.