speedUnit Conversion

Speed/Velocity Converter

Convert between speed units: m/s, km/h, mph, knots, Mach, and more.

check_circle10 Units: m/s, km/h, mph, kn, ft/s, ft/min, m/min, km/min, Mach, c.
check_circleBidirectional: Select any from/to combination.
check_circleAviation: Knots, Mach number.
check_circleCommon Use: Automotive, aviation, physics.

Speed/Velocity Converter

Value

From Unit

To Unit

school Theory & Formulas

Speed Conversion Reference:

Base unit: Meter per Second (m/s)

Common conversions:
• 1 km/h = 0.2778 m/s
• 1 mph = 0.4470 m/s = 1.609 km/h
• 1 knot = 0.5144 m/s = 1.852 km/h
• 1 ft/s = 0.3048 m/s
• Mach 1 = 343 m/s (at sea level, 20°C)
• Speed of light = 299,792,458 m/s