

Convert Miles Per Hour to Feet Per Second (mph to fps) ▶ Conversion Table
How to convert1 foot per second (fps) = 0.681818 mile per hour (mph). Foot Per Second (fps) is a unit of Speed used in Standard system. Mile Per Hour (mph) is a unit of Speed used in Metric system. Feet per second: A unit of speedFeet 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 secondFeet 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:
Where feet per second are usedFeet 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 secondAccording 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 secondThe 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 eightysix 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 unitsHere 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 Miles Per HourDefinition of Miles Per HourMiles per hour (mph, m.p.h., MPH, or mi/h) is a unit of speed that measures how fast something is moving in terms of miles per unit of time. It is commonly used in the United States, the United Kingdom, and some other countries that use the US Standard system of measurement or have close historical ties with them. The speed limit signs on roads and highways are usually expressed in mph. One mile per hour is equal to 1.609344 kilometers per hour, or 0.44704 meters per second. It can also be converted to other units of speed, such as feet per second, knots, or meters per second, by using appropriate conversion factors. How to Convert Miles Per HourTo convert miles per hour to other units of speed, we need to multiply or divide by the corresponding conversion factors. For example, to convert miles per hour to kilometers per hour, we need to multiply by 1.609344, since there are 1.609344 kilometers in one mile. To convert miles per hour to meters per second, we need to multiply by 0.44704, since there are 0.44704 meters in one mile. Here are some examples of how to convert miles per hour to other units of length in the US Standard system and the SI system:
Where Miles Per Hour Are UsedMiles per hour are mainly used in the United States, the United Kingdom, and some other countries that use the US Standard system of measurement or have close historical ties with them. 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 60 mph, which means that it travels a distance of 60 miles in one hour. A road sign may indicate a speed limit of 55 mph, which means that drivers should not exceed this speed on that road section. A train may have a speed of up to 150 mph, which means that it covers a distance of up to 150 miles in one hour. Miles 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 miles per unit of time. History of Miles Per HourThe origin of miles per hour as a unit of speed can be traced back to the development of the US Standard system and the mile as a unit of length in the late eighteenth century. The mile was defined as one thousand six hundred and nine meters (or eight furlongs) based on the English statute mile. The term mile first appeared in English in the late fourteenth century, but it was not until later in the early nineteenth century that the use of miles per hour became more common; before that, other units such as feet per second or leagues per hour were preferred for expressing speed. Miles per hour have been used ever since as a standard unit of speed for the United States, the United Kingdom, and some other countries that use the US Standard system or have close historical ties with them. 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 Miles Per Hour to Other UnitsHere are some examples of how to convert miles per hour to other units of speed, using the conversion factors given above:
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Feet Per Second to Centimeters Per Second Feet Per Second to Knots Feet Per Second to Kilometers Per Hour Feet Per Second to Mach Feet Per Second to Miles Per Minute Feet Per Second to Miles Per Second Feet Per Second to Miles Per Hour Feet Per Second to Meters Per Second Miles Per Hour to Centimeters Per Second Miles Per Hour to Feet Per Second Miles Per Hour to Kilometers Per Day Miles Per Hour to Kilometers Per Second Miles Per Hour to Knots Miles Per Hour to Kilometers Per Hour Miles Per Hour to Light Speed Miles Per Hour to Meters Per Minute Miles Per Hour to Mach Miles Per Hour to Miles Per Day Miles Per Hour to Miles Per Minute Miles Per Hour to Miles Per Second Miles 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 Kilometers Per Hour to Knots Kilometers Per Hour to Light Speed Kilometers Per Hour to Mach Kilometers Per Hour to Miles Per Second Kilometers Per Hour to Miles Per Hour Kilometers Per Hour to Meters Per Second Light Speed to Kilometers Per Hour Light Speed to Miles Per Hour Mach to Kilometers Per Hour Mach to Miles Per Second Mach to Miles Per Hour Miles Per Second to Kilometers Per Hour Miles Per Second to Mach 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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