Speed & Velocity Converter

🔄 Speed & Velocity Converter

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🚀 Speed & Velocity Benchmarks

Speed is distance per unit time. Velocity adds direction. The SI unit is metres per second (m/s). Different domains use different preferred units.

🚶

Walking

5 km/h · 3.1 mph

🚲

Cycling

20 km/h · 12.4 mph

🚗

Motorway

100–130 km/h

🚢

Ship

20–25 knots

✈️

Jet aircraft

900 km/h · ~0.85 Mach

🔊

Speed of Sound

343 m/s · Mach 1

📋 All Speed Units Reference

Unit	Equivalent	Common Use
m/s	SI base unit	Science, physics
km/h	1000 m / 3600 s	Road speed limits (most countries)
mph	1.609 km/h	UK/US road speeds
ft/s	0.3048 m/s	US engineering, aerospace
Knot (kn)	1 nautical mile/h = 1.852 km/h	Marine, aviation
Mach	~343 m/s at sea level	Aerospace, supersonic

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