How to convert feet per second to kilometers per hour
To convert a measurement in feet per second to kilometers per hour, multiply the value by 1.09728. The conversion factor comes from the relationship between both units and the meter per second.
For example, to convert 5 ft/s to kilometers per hour: 5 × 1.09728 = 5.4864 km/h.
What is a foot per second?
The foot per second is an imperial unit of speed equal to one foot traveled in one second, or exactly 0.3048 meters per second. Ft/s is common in US engineering and ballistics, where distances are measured in feet. Muzzle velocities, fluid flow, and free-fall speeds are frequently expressed this way.
Common uses of feet per second include: Ballistics and muzzle velocity; US engineering and fluid flow; Free-fall and projectile physics; Conveyor and belt speeds.
What is a kilometer per hour?
The kilometer per hour is a metric unit of speed equal to one kilometer traveled in one hour, or exactly 1/3.6 meters per second. Km/h became the standard for road speed limits in most of the world as motor vehicles spread in the 20th century, pairing naturally with the metric system's kilometer.
Common uses of kilometers per hour include: Road speed limits in most countries; Vehicle speedometers worldwide; Weather reports for wind speed; Cycling and running pace tracking.
Feet per second to kilometers per hour worked examples
Here are some common values converted:
1 ft/s = 1.09728 km/h 5 ft/s = 5.4864 km/h 10 ft/s = 10.9728 km/h 50 ft/s = 54.864 km/h 100 ft/s = 109.728 km/h
Frequently asked questions
How many kilometers per hour are in one foot per second?
One foot per second (ft/s) equals 1.09728 kilometers per hour (km/h). Multiply any value in feet per second by 1.09728 to convert to kilometers per hour.
How do I convert feet per second to kilometers per hour?
Multiply the value in feet per second by 1.09728. For example, 5 ft/s × 1.09728 = 5.4864 km/h.
How do I convert kilometers per hour to feet per second?
Multiply the value in kilometers per hour by 0.911344415281, or divide by 1.09728. Use the swap button on the converter above to reverse the direction.
Is the foot per second to kilometer per hour conversion exact?
Conversions between m/s, km/h, mph, knots and ft/s are exact by definition. Mach uses the speed of sound at sea level and 15°C (340.29 m/s), which varies with temperature and altitude.
What is the formula for feet per second to kilometers per hour?
The formula is: km/h = ft/s × 1.09728. This comes from the definition of both units relative to the meter per second.