Convert 21 Feet per Second to Kilometers per Hour
How fast is 21 feet per second? What is 21 feet per second in kilometers per hour? 21 fps to km/h conversion.
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21 Feet per Second =
23.04288 Kilometers per Hour
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Result in Plain English
21 feet per second is equal to about 23.0 kilometers per hour.
In Scientific Notation
21 feet per second
= 2.1 x 101 feet per second
≈ 2.30429 x 101 kilometers per hour
Feet per Second
A foot per second is a unit of speed. Something traveling at one foot per second is traveling exactly 0.3048 meters per second, or about 0.682 miles per hour.Common abbreviations: ft/s, fps
Kilometers per Hour
A kilometer per hour is a unit of speed. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour.Common abbreviations: km/h, kmph, km/hr, km/hour