Meters Per Second to Miles Per Second
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1 meter per second (m/s) = 0.000621371 mile per second (mi/s). Meter Per Second (m/s) is a unit of Speed used in Metric system. Mile Per Second (mi/s) is a unit of Speed used in Standard system.

Meters per second: A unit of speed

Meters per second (m/s) is a unit of speed or velocity in the International System of Units (SI). It measures how fast an object is moving by calculating the distance traveled in meters divided by the time taken in seconds. For example, if a car travels 100 meters in 5 seconds, its speed is 20 m/s.

How to convert meters per second

Meters per second can be converted to other units of speed or velocity by using simple conversion factors. Here are some common units and their conversion factors:

• Kilometers per hour (km/h): To convert from m/s to km/h, multiply by 3.6. To convert from km/h to m/s, divide by 3.6. For example, 20 m/s is equal to 72 km/h, and 50 km/h is equal to 13.89 m/s.
• Miles per hour (mph): To convert from m/s to mph, multiply by 2.2369. To convert from mph to m/s, divide by 2.2369. For example, 20 m/s is equal to 44.74 mph, and 30 mph is equal to 13.41 m/s.
• Knots (kn): To convert from m/s to kn, multiply by 1.9438. To convert from kn to m/s, divide by 1.9438. For example, 20 m/s is equal to 38.88 kn, and 15 kn is equal to 7.72 m/s.
• Feet per second (ft/s): To convert from m/s to ft/s, multiply by 3.2808. To convert from ft/s to m/s, divide by 3.2808. For example, 20 m/s is equal to 65.62 ft/s, and 40 ft/s is equal to 12.19 m/s.

Where meters per second are used

Meters per second are widely used in science and engineering to measure the speed or velocity of various phenomena, such as sound waves, light waves, wind speed, fluid flow, projectile motion, etc.

Meters per second are also used in some countries as the official unit of speed or velocity for road traffic signs and regulations. For example, in Canada, the maximum speed limit on highways is usually 100 km/h, which is equivalent to 27.78 m/s.

Meters per second are also used in sports and athletics to measure the performance of athletes, such as sprinters, swimmers, cyclists, etc.

Definition of meters per second

According to the SI definition, one meter per second is the speed of a body that covers a distance of one meter in a time of one second.

Mathematically, it can be expressed as:

v = s / t

where v is the speed or velocity in meters per second, s is the distance traveled in meters, and t is the time taken in seconds.

History of meters per second

The concept of speed or velocity has been studied since ancient times by philosophers and scientists such as Aristotle, Galileo, Newton, etc.

The meter was originally defined in 1793 by the French Academy of Sciences as one ten-millionth of the distance from the equator to the North Pole along a meridian through Paris.

The second was originally defined in terms of the Earth’s rotation as one eighty-six thousand four hundredth of a mean solar day.

The combination of these two units resulted in the meter per second as a unit of speed or velocity.

The meter per second was officially adopted as part of the SI system in 1960.

Example conversions of meters per second to other units

Here are some examples of converting meters per second to other units of speed or velocity:

• 10 m/s = 36 km/h = 22.37 mph = 19.44 kn = 32.81 ft/s
• 5 m/s = 18 km/h = 11.18 mph = 9.72 kn = 16.4 ft/s
• 15 m/s = 54 km/h = 33.55 mph = 29.17 kn = 49.21 ft/s
• 25 m/s = 90 km/h = 55.92 mph = 48.61 kn = 82.02 ft/s
• 50 m/s = 180 km/h = 111.85 mph = 97.22 kn = 164.04 ft/s
• 100 m/s = 360 km/h = 223.69 mph = 194.39 kn = 328.08 ft/s
• 200 m/s = 720 km/h = 447.39 mph = 388.79 kn = 656.17 ft/s

Miles per second: A unit of speed

Miles per second (mi/s) is a unit of speed or velocity in the US customary and imperial systems. It measures how fast an object is moving by calculating the distance traveled in miles divided by the time taken in seconds. For example, if a bullet travels 1 mile in 0.5 seconds, its speed is 2 mi/s.

How to convert miles per second

Miles per second can be converted to other units of speed or velocity by using simple conversion factors. Here are some common units and their conversion factors:

• Meters per second (m/s): To convert from mi/s to m/s, multiply by 1609.34. To convert from m/s to mi/s, divide by 1609.34. For example, 1 mi/s is equal to 1609.34 m/s, and 100 m/s is equal to 0.0621371 mi/s.
• Kilometers per hour (km/h): To convert from mi/s to km/h, multiply by 5793.64. To convert from km/h to mi/s, divide by 5793.64. For example, 1 mi/s is equal to 5793.64 km/h, and 50 km/h is equal to 0.00863028 mi/s.
• Miles per hour (mph): To convert from mi/s to mph, multiply by 3600. To convert from mph to mi/s, divide by 3600. For example, 1 mi/s is equal to 3600 mph, and 60 mph is equal to 0.0166667 mi/s.
• Knots (kn): To convert from mi/s to kn, multiply by 3128.31. To convert from kn to mi/s, divide by 3128.31. For example, 1 mi/s is equal to 3128.31 kn, and 15 kn is equal to 0.00479717 mi/s.
• Feet per second (ft/s): To convert from mi/s to ft/s, multiply by 5280. To convert from ft/s to mi/s, divide by 5280. For example, 1 mi/s is equal to 5280 ft/s, and 40 ft/s is equal to 0.00757576 mi/s.
• Inches per second (in/s): To convert from mi/s to in/s, multiply by 63360. To convert from in/s to mi/s, divide by 63360. For example, 1 mi/s is equal to 63360 in/s, and 20 in/s is equal to 0.000315789 mi/s.

Where miles per second are used

Miles per second are mainly used in physics and astronomy to measure the speed or velocity of very fast objects and phenomena.

For example, the escape velocity of the Earth is about 11 km/s or about 6.84 mi/s.

The orbital velocity of the Earth around the Sun is about 30 km/s or about 18.64 mi/s.

The speed of light in a vacuum is about 300000 km/s or about 186282 mi/s.

The speed of sound in air at sea level is about 343 m/s or about 0.213139 mi/s.

Definition of miles per second

According to the US customary and imperial systems definition, one mile per second is the speed of a body that covers a distance of one mile in a time of one second.

Mathematically, it can be expressed as:

v = s / t

where v is the speed or velocity in miles per second, s is the distance traveled in miles, and t is the time taken in seconds.

History of miles per second

The concept of speed or velocity has been studied since ancient times by philosophers and scientists such as Aristotle, Galileo, Newton, etc.

The mile was originally derived from the Roman mile which was defined as one thousand paces or about 5000 Roman feet.

The second was originally defined in terms of the Earth’s rotation as one eighty-six thousand four hundredth of a mean solar day.

The combination of these two units resulted in the mile per second as a unit of speed or velocity.

The mile per second was officially adopted as part of the US customary and imperial systems in the late 18th century.

Example conversions of miles per second to other units

Here are some examples of converting miles per second to other units of speed or velocity:

• 1 mi/s = 1609.34 m/s = 5793.64 km/h = 3600 mph = 3128.31 kn = 5280 ft/s = 63360 in/s
• 2 mi/s = 3218.68 m/s = 11587.28 km/h = 7200 mph = 6256.62 kn = 10560 ft/s = 126720 in/s
• 5 mi/s = 8046.7 m/s = 28968.2 km/h = 18000 mph = 15657.55 kn = 26400 ft/s = 316800 in/s
• 10 mi/s = 16093.4 m/s = 57936.4 km/h = 36000 mph = 31283.1 kn = 52800 ft/s = 633600 in/s
• 20 mi/s = 32186.8 m/s = 115872.8 km/h = 72000 mph = 62566.2 kn = 105600 ft/s = 1267200 in/s
• 50 mi/s = 80467 m/s = 289682 km/h = 180000 mph = 156575.5 kn = 264000 ft/s = 3168000 in/s
• 100 mi/s = 160934 m/s = 579364 km/h = 360000 mph = 312831 kn = 528000 ft/s = 6336000 in/s