Speed converter

This speed converter tool helps you convert between 32 different units:

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All possible speed conversions

Below, we provide an overview of all the speed conversions available on this website to help you navigate and utilize our resources efficiently.

Unit	Conversion
Meters per second (m/s)	Base unit
Kilometers per hour (km/h)	Kilometers per hour to Meters per second \| Meters per second to Kilometers per hour
Miles per hour (mi/h)	Miles per hour to Meters per second \| Meters per second to Miles per hour
Meters per minute (m/min)	Meters per minute to Meters per second \| Meters per second to Meters per minute
Kilometers per minute (km/min)	Kilometers per minute to Meters per second \| Meters per second to Kilometers per minute
Kilometers per second (km/s)	Kilometers per second to Meters per second \| Meters per second to Kilometers per second
Centimeters per hour (cm/h)	Centimeters per hour to Meters per second \| Meters per second to Centimeters per hour
Centimeters per minute (cm/min)	Centimeters per minute to Meters per second \| Meters per second to Centimeters per minute
Centimeters per second (cm/s)	Centimeters per second to Meters per second \| Meters per second to Centimeters per second
Millimeters per hour (mm/h)	Millimeters per hour to Meters per second \| Meters per second to Millimeters per hour
Millimeters per minute (mm/min)	Millimeters per minute to Meters per second \| Meters per second to Millimeters per minute
Millimeters per second (mm/s)	Millimeters per second to Meters per second \| Meters per second to Millimeters per second
Miles per minute (mi/min)	Miles per minute to Meters per second \| Meters per second to Miles per minute
Miles per second (mi/s)	Miles per second to Meters per second \| Meters per second to Miles per second
Feet per hour (ft/h)	Feet per hour to Meters per second \| Meters per second to Feet per hour
Feet per minute (ft/min)	Feet per minute to Meters per second \| Meters per second to Feet per minute
Feet per second (ft/s)	Feet per second to Meters per second \| Meters per second to Feet per second
Inches per hour (in/h)	Inches per hour to Meters per second \| Meters per second to Inches per hour
Inches per minute (in/min)	Inches per minute to Meters per second \| Meters per second to Inches per minute
Inches per second (in/s)	Inches per second to Meters per second \| Meters per second to Inches per second
Yards per hour (yd/h)	Yards per hour to Meters per second \| Meters per second to Yards per hour
Yards per minute (yd/min)	Yards per minute to Meters per second \| Meters per second to Yards per minute
Yards per second (yd/s)	Yards per second to Meters per second \| Meters per second to Yards per second
Knots (kn)	Knots to Meters per second \| Meters per second to Knots
Knots (uk) (kn (UK))	Knots (uk) to Meters per second \| Meters per second to Knots (uk)
Speed of light (vacuum) (c)	Speed of light (vacuum) to Meters per second \| Meters per second to Speed of light (vacuum)
Mach (isa) (M)	Mach (isa) to Meters per second \| Meters per second to Mach (isa)
Mach (atmospheric) (M)	Mach (atmospheric) to Meters per second \| Meters per second to Mach (atmospheric)
Speed of sound (air) (M)	Speed of sound (air) to Meters per second \| Meters per second to Speed of sound (air)
Speed of sound (water) (M)	Speed of sound (water) to Meters per second \| Meters per second to Speed of sound (water)
Speed of sound (iron) (M)	Speed of sound (iron) to Meters per second \| Meters per second to Speed of sound (iron)
Speed of sound (diamond) (M)	Speed of sound (diamond) to Meters per second \| Meters per second to Speed of sound (diamond)

What is Speed?

Speed is a measure of how quickly an object moves from one place to another. It is defined as the distance traveled divided by the time taken to cover that distance. Speed is a fundamental concept in physics and everyday life, influencing everything from transportation to sports and engineering.

Common Units of Speed

Speed can be measured using various units depending on the measurement system in use. The most common units include:

Meter per second (m/s) - The SI (International System of Units) standard unit.
Kilometers per hour (km/h) - Commonly used in road transportation.
Miles per hour (mph) - Used in the United States and the United Kingdom for speed limits.
Feet per second (ft/s) - Occasionally used in engineering and ballistics.
Knots (kn) - Used in aviation and maritime contexts.

FAQs About Speed

How is speed different from velocity?

Speed is a scalar quantity that only considers magnitude, whereas velocity is a vector quantity that includes both magnitude and direction.

What is the speed of light?

The speed of light in a vacuum is approximately 299,792,458 meters per second (m/s), often rounded to 300,000 km/s.

What is the fastest recorded speed on Earth?

The fastest recorded speed by a land vehicle is 1,227.985 km/h (763.035 mph), achieved by the ThrustSSC, a jet-powered car.

How Fast is Mach 1?

Mach 1 is the speed of sound, which varies depending on altitude, temperature, and atmospheric conditions. At sea level and 20°C (68°F), Mach 1 is approximately 343 meters per second (m/s) or 1,235 kilometers per hour (km/h) (767 miles per hour (mph)).

What happens when a jet breaks the sound barrier?

When a jet reaches Mach 1, it compresses air in front of it, creating a sonic boom—a sudden, loud explosion-like noise. This occurs because the aircraft is traveling faster than the pressure waves (sound waves) it generates, causing them to merge into a powerful shockwave. Once past Mach 1, the aircraft moves ahead of its own sound, making it eerily silent to those on board.