Speed Converter

Convert between kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), knots, and feet per second.

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How do you convert km/h to mph? ↓

Multiply your km/h speed by 0.621371 (or divide by 1.60934) to calculate mph.

What is a knot? ↓

A knot is a unit of speed equal to one nautical mile per hour (approximately 1.852 km/h or 1.15078 mph).

How fast is 1 meter per second in km/h? ↓

1 m/s equals exactly 3.6 kilometers per hour (km/h) or approximately 2.23694 mph.

Is this conversion instant and private? ↓

Yes, 100%. All speed calculations are performed locally in your browser with zero latency.