Feet Per Second to Kilometers Per Hour Converter (fps to kph)
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Convert Kilometers Per Hour to Feet Per Second (kph to fps) ▶

Conversion Table

feet per second to kilometers per hour
fpskph
1 fps 1.0973 kph
2 fps 2.1946 kph
3 fps 3.2918 kph
4 fps 4.3891 kph
5 fps 5.4864 kph
6 fps 6.5837 kph
7 fps 7.681 kph
8 fps 8.7782 kph
9 fps 9.8755 kph
10 fps 10.9728 kph
11 fps 12.0701 kph
12 fps 13.1674 kph
13 fps 14.2646 kph
14 fps 15.3619 kph
15 fps 16.4592 kph
16 fps 17.5565 kph
17 fps 18.6538 kph
18 fps 19.751 kph
19 fps 20.8483 kph
20 fps 21.9456 kph

How to convert

1 foot per second (fps) = 1.09728 kilometer per hour (kph). Foot Per Second (fps) is a unit of Speed used in Standard system. Kilometer Per Hour (kph) is a unit of Speed used in Metric system.

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.

Kilometers Per Hour

Definition of Kilometers Per Hour

Kilometers per hour (km/h) is a unit of speed that measures how fast something is moving in terms of kilometers per unit of time. It is commonly used in most countries around the world, except for the United States and some other countries that use the US Standard system of measurement. The speed limit signs on roads and highways are usually expressed in km/h.

One kilometer per hour is equal to 0.27777777777778 meters per second, or 3.6 meters per minute. It can also be converted to other units of speed, such as miles per hour, feet per second, or knots, by using appropriate conversion factors.

How to Convert Kilometers Per Hour

To convert kilometers per hour to other units of speed, we need to multiply or divide by the corresponding conversion factors. For example, to convert kilometers per hour to miles per hour, we need to multiply by 0.6213711922, since there are 0.6213711922 miles in one kilometer. To convert kilometers per hour to meters per second, we need to divide by 3.6, since there are 3.6 seconds in one minute.

Here are some examples of how to convert kilometers per hour to other units of length in the US Standard system and the SI system:

  • To convert 10 km/h to miles per hour (mph), we multiply by 0.6213711922: 10 km/h x 0.6213711922 = 6.213711922 mph
  • To convert 20 km/h to feet per second (fps), we multiply by 0.9113444153, since there are 0.9113444153 feet in one meter: 20 km/h x 0.9113444153 = 18.226888306 fps
  • To convert 30 km/h to knots (kn), we multiply by 0.5399568035, since there are 0.5399568035 nautical miles in one kilometer: 30 km/h x 0.5399568035 = 16.198704105 kn
  • To convert 40 km/h to meters per second (m/s), we divide by 3.6: 40 km/h / 3.6 = 11.111111111 m/s
  • To convert 50 km/h to meters per minute (m/min), we multiply by 16.666666667, since there are 16.666666667 minutes in one hour: 50 km/h x 16.666666667 = 833.33333335 m/min
  • To convert 60 km/h to centimeters per second (cm/s), we multiply by 1000, since there are 100 centimeters in one meter, and divide by 3.6: 60 km/h x 1000 / 3.6 = 16666.666667 cm/s

Where Kilometers Per Hour Are Used

Kilometers per hour are mainly used in most countries around the world that use the SI system of measurement or the metric system. They are often used for car speeds and road signs, as well as for trains, planes, boats, and bicycles.

For example, a car may have a speed of 100 km/h, which means that it travels a distance of 100 kilometers in one hour. A road sign may indicate a speed limit of 80 km/h, which means that drivers should not exceed this speed on that road section. A train may have a speed of 300 km/h, which means that it covers a distance of 300 kilometers in one hour.

Kilometers per hour are also used in some other fields, such as sports, weather, and astronomy, where the speed or velocity of an object or phenomenon is measured in kilometers per unit of time.

History of Kilometers Per Hour

The origin of kilometers per hour as a unit of speed can be traced back to the development of the metric system and the kilometer as a unit of length in the late eighteenth century. The kilometer was defined as one ten-thousandth of the distance from the equator to the North Pole along a meridian through Paris.

The term kilometer first appeared in English in 1810, but it was not until later in the mid-nineteenth century that the use of kilometers per hour became more widespread; before that, other units such as miles per hour or leagues per hour were preferred for expressing speed.

Kilometers per hour have been used ever since as a standard unit of speed for most countries around the world that use the SI system or the metric system. They have also been adopted by some international organizations and conventions, such as the International Civil Aviation Organization and the International System of Units.

Example Conversions of Kilometers Per Hour to Other Units

Here are some examples of how to convert kilometers per hour to other units of speed, using the conversion factors given above:

  • To convert 100 km/h to miles per hour, we multiply by 0.6213711922: 100 km/h x 0.6213711922 = 62.13711922 mph
  • To convert 200 km/h to feet per second, we multiply by 0.9113444153: 200 km/h x 0.9113444153 = 182.26887661 fps
  • To convert 300 km/h to knots, we multiply by 0.5399568035: 300 km/h x 0.5399568035 = 161.98704105 kn
  • To convert 400 km/h to meters per second, we divide by 3.6: 400 km/h / 3.6 = 111.11111111 m/s
  • To convert 500 km/h to meters per minute, we multiply by 16.666666667: 500 km/h x 16.666666667 = 8333.3333335 m/min
  • To convert 600 km/h to centimeters per second, we multiply by 1000 and divide by 3.6: 600 km/h x 1000 / 3.6 = 166666.666667 cm/s
  • To convert 700 km/h to millimeters per minute, we multiply by 1000000, since there are 1000000 millimeters in one kilometer, and divide by 60, since there are 60 minutes in one hour: 700 km/h x 1000000 / 60 = 11666666.666667 mm/min
Kilometers per hour also can be marked as km/h and Kilometres per hour(alternative British English spelling in UK).



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Feet Per Second to Knots
Feet Per Second to Kilometers Per Hour
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Feet Per Second to Miles Per Minute
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Kilometers Per Hour to Centimeters Per Second
Kilometers Per Hour to Feet Per Second
Kilometers Per Hour to Kilometers Per Day
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Kilometers Per Hour to Miles Per Day
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Kilometers Per Hour to Meters Per Second
Kilometers Per Second to Kilometers Per Hour
Knots to Kilometers Per Hour
Knots to Miles Per Hour
Kilometers Per Hour to Kilometers Per Second
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Kilometers Per Hour to Mach
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Miles Per Hour to Knots
Miles Per Hour to Kilometers Per Hour
Miles Per Hour to Light Speed
Miles Per Hour to Mach
Miles Per Hour to Meters Per Second
Meters Per Second to Kilometers Per Hour
Meters Per Second to Miles Per Hour

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