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Millimeters Per Second to Feet Per Second
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Convert Feet Per Second to Millimeters Per Second (fps to mm/s) ▶

Conversion Table

millimeters per second to feet per second
mm/s	fps
100 mm/s	0.3281 fps
200 mm/s	0.6562 fps
300 mm/s	0.9843 fps
400 mm/s	1.3123 fps
500 mm/s	1.6404 fps
600 mm/s	1.9685 fps
700 mm/s	2.2966 fps
800 mm/s	2.6247 fps
900 mm/s	2.9528 fps
1000 mm/s	3.2808 fps
1100 mm/s	3.6089 fps
1200 mm/s	3.937 fps
1300 mm/s	4.2651 fps
1400 mm/s	4.5932 fps
1500 mm/s	4.9213 fps
1600 mm/s	5.2493 fps
1700 mm/s	5.5774 fps
1800 mm/s	5.9055 fps
1900 mm/s	6.2336 fps
2000 mm/s	6.5617 fps

How to convert

1 millimeter per second (mm/s) = 0.00328084 foot per second (fps). Millimeter Per Second (mm/s) is a unit of Speed used in Metric system. Foot Per Second (fps) is a unit of Speed used in Standard system.

How to convert millimeters per second

Millimeters 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 mm/s to m/s, divide by 1000. To convert from m/s to mm/s, multiply by 1000. For example, 1 mm/s is equal to 0.001 m/s, and 10 m/s is equal to 10000 mm/s.
Kilometers per hour (km/h): To convert from mm/s to km/h, multiply by 0.0036. To convert from km/h to mm/s, divide by 0.0036. For example, 1 mm/s is equal to 0.0036 km/h, and 50 km/h is equal to 13888.89 mm/s.
Miles per hour (mph): To convert from mm/s to mph, multiply by 0.00223694. To convert from mph to mm/s, divide by 0.00223694. For example, 1 mm/s is equal to 0.00223694 mph, and 30 mph is equal to 13411.2 mm/s.
Knots (kn): To convert from mm/s to kn, multiply by 0.00194384. To convert from kn to mm/s, divide by 0.00194384. For example, 1 mm/s is equal to 0.00194384 kn, and 15 kn is equal to 7716.12 mm/s.
Feet per second (ft/s): To convert from mm/s to ft/s, multiply by 0.00328084. To convert from ft/s to mm/s, divide by 0.00328084. For example, 1 mm/s is equal to 0.00328084 ft/s, and 40 ft/s is equal to 12192 mm/s.
Inches per second (in/s): To convert from mm/s to in/s, multiply by 0.0393701. To convert from in/s to mm/s, divide by 0.0393701. For example, 1 mm/s is equal to 0.0393701 in/s, and 20 in/s is equal to 508 mm/s.

Where millimeters per second are used

Millimeters per second are mainly used in microbiology and nanotechnology to measure the speed or velocity of microscopic organisms and processes.

For example, the average speed of a bacterium such as Escherichia coli is about 10-20 micrometers per second, which is equivalent to 0.01-0.02 mm/s.

The average speed of a virus such as influenza A virus is about 1 micrometer per second, which is equivalent to 0.001 mm/s.

The average speed of a nanorobot such as a DNA origami walker is about 4 nanometers per second, which is equivalent to 0.000004 mm/s.

Definition of millimeters per second

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

Mathematically, it can be expressed as:

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

History of millimeters 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 millimeter was originally derived from the meter in the late 18th century as one thousandth of a meter.

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 millimeter per second as a unit of speed or velocity.

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

Example conversions of millimeters per second to other units

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

1 mm/s = 0.001 m/s = 0.0036 km/h = 0.00223694 mph = 0.00194384 kn = 0.00328084 ft/s = 0.0393701 in/s
2 mm/s = 0.002 m/s = 0.0072 km/h = 0.00447388 mph = 0.00388768 kn = 0.00656168 ft/s = 0.0787402 in/s
5 mm/s = 0.005 m/s = 0.018 km/h = 0.0111847 mph = 0.0097192 kn = 0.0164042 ft/s = 0.196851 in/s
10 mm/s = 0.01 m/s = 0.036 km/h = 0.0223694 mph = 0.0194384 kn = 0.0328084 ft/s = 0.393701 in/s
20 mm/s = 0.02 m/s = 0.072 km/h = 0.0447388 mph = 0.0388768 kn = 0.0656168 ft/s = 0.787402 in/s
50 mm/s = 0.05 m/s = 0.18 km/h = 0.111847 mph = 0.097192 kn = 0.164042 ft/s = 1.9685 in/s
100 mm/s = 0.1 m/s = 0.36 km/h = 0.223694 mph = 0.194384 kn = 0.328084 ft/s = 3.93701 in/s

Millimeters per second also can be marked as mm/s and Millimetres per second (alternative British English spelling in UK).

Feet per second: A unit of speed

Feet per second (ft/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 feet divided by the time taken in seconds. For example, if a person walks 10 feet in 2 seconds, their speed is 5 ft/s.

How to convert feet per second

Feet 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 ft/s to m/s, multiply by 0.3048. To convert from m/s to ft/s, divide by 0.3048. For example, 1 ft/s is equal to 0.3048 m/s, and 10 m/s is equal to 32.8084 ft/s.
Kilometers per hour (km/h): To convert from ft/s to km/h, multiply by 1.09728. To convert from km/h to ft/s, divide by 1.09728. For example, 1 ft/s is equal to 1.09728 km/h, and 50 km/h is equal to 45.8734 ft/s.
Miles per hour (mph): To convert from ft/s to mph, multiply by 0.681818. To convert from mph to ft/s, divide by 0.681818. For example, 1 ft/s is equal to 0.681818 mph, and 30 mph is equal to 44 ft/s.
Knots (kn): To convert from ft/s to kn, multiply by 0.592484. To convert from kn to ft/s, divide by 0.592484. For example, 1 ft/s is equal to 0.592484 kn, and 15 kn is equal to 25.3281 ft/s.
Inches per second (in/s): To convert from ft/s to in/s, multiply by 12. To convert from in/s to ft/s, divide by 12. For example, 1 ft/s is equal to 12 in/s, and 20 in/s is equal to 1.66667 ft/s.
Miles per second (mi/s): To convert from ft/s to mi/s, multiply by 0.000189394. To convert from mi/s to ft/s, divide by 0.000189394. For example, 1 ft/s is equal to 0.000189394 mi/s, and 1 mi/s is equal to 5280 ft/s.

Where feet per second are used

Feet per second are mainly used in engineering and aviation to measure the speed or velocity of machines and aircrafts.

For example, the speed of sound in air at sea level is about 343 m/s or about 1125 ft/s.

The maximum speed of a Boeing 747 jet airliner is about 988 km/h or about 2717 ft/s.

The average speed of a bullet fired from a handgun is about 1200 ft/s.

Definition of feet per second

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

Mathematically, it can be expressed as:

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

History of feet 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 foot was originally derived from the Roman foot which was defined as one third of a yard or about 11.65 inches.

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 foot per second as a unit of speed or velocity.

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

Example conversions of feet per second to other units

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

1 ft/s = 0.3048 m/s = 1.09728 km/h = 0.681818 mph = 0.592484 kn = 12 in/s = 0.000189394 mi/s
2 ft/s = 0.6096 m/s = 2.19456 km/h = 1.36364 mph = 1.18497 kn = 24 in/s = 0.000378788 mi/s
5 ft/s = 1.524 m/s = 5.4864 km/h = 3.40909 mph = 2.96241 kn = 60 in/s = 0.00094697 mi/s
10 ft/s = 3.048 m/s = 10.9728 km/h = 6.81818 mph = 5.92482 kn = 120 in/s = 0.00189394 mi/s
20 ft/s = 6.096 m/s = 21.9456 km/h = 13.6364 mph = 11.8496 kn = 240 in/s = 0.00378788 mi/s
50 ft/s = 15.24 m/s = 54.864 km/h = 34.0909 mph = 29.6241 kn = 600 in/s = 0.0094697 mi/s
100 ft/s = 30.48 m/s = 109.728 km/h = 68.1818 mph = 59.2482 kn = 1200 in/s = 0.0189394 mi/s

Foot per second also can be marked as fps.

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Millimeters Per Second to Feet Per Second Converter