21 ft/s to km/h

Convert 21 feet per second (ft/s) to kilometers per hour (km/h) with formulas, examples, and conversion tables.

ft/s
km/h
21 feet per second (ft/s) = 23.0428615657 kilometers per hour (km/h)
Round to:
Step-by-Step Solution
1Write the conversion factor:
1 foot per second = 1.09727912218 kilometers per hour
2Multiply the value by the conversion factor:
21 × 1.09727912218 = 23.0428615657
3Result:
21 feet per second (ft/s) = 23.0428615657 kilometers per hour (km/h)
↔ km/h to ft/s

Feet per Second to Kilometers per Hour Conversion Table

Feet per SecondKilometers per Hour
1 ft/s1.09728 km/h
2 ft/s2.19456 km/h
3 ft/s3.29184 km/h
4 ft/s4.38912 km/h
5 ft/s5.4864 km/h
10 ft/s10.9728 km/h
20 ft/s21.9456 km/h
21 ft/s23.0429 km/h
50 ft/s54.864 km/h
100 ft/s109.728 km/h

21 Feet per Second in Other Units

Unit21 ft/s =
ft/s to m/s6.4008 m/s
ft/s to km/h23.0428615657 km/h
Feet per Second to Centimeters per Second640.08 cm/s
ft/s to mph14.3181818182 mph
Feet per Second to Inches per Second252 in/s
Feet per Second to Knots12.4421705764 kn
Feet per Second to Mach0.018809838667 Mach
Feet per Second to Speed of Light2.13507706054e-8 c
Feet per Second to Kilometers per Second0.0064008 km/s

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