Speed Converter
Convert between m/s, km/h, mph, knots, and ft/s instantly.
Type in any field and the others update automatically.
Type in any field — the others update instantly.
Speed Conversion uses meters per second (m/s) as the base unit.
Key relationships:
1 km/h = 0.27778 m/s1 mph = 0.44704 m/s1 knot = 0.51444 m/s1 ft/s = 0.3048 m/s1 mph ≈ 1.609 km/h1 knot ≈ 1.852 km/h
Common references:
- Walking speed: 5 km/h (3.1 mph)
- Highway driving: 100 km/h (62.1 mph)
- Speed of sound: 343 m/s (1,235 km/h / 767 mph / Mach 1)