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Converters · Speed

21.45 Miles per hour to Feet per second

21.45 mph =

31.46 ft/s

21.45 miles per hour equals 31.46 feet per second

mph

How to convert miles per hour to feet per second

To get feet per second, multiply by 1.466666667.

ft/s = mph × 1.466666667

Worked example: 21.45 × 1.466666667 = 31.46 ft/s.

Going the other way, multiply by 0.6818181818 — one foot per second is 0.6818181818 miles per hour.

Values near 21.45 mph

Mile per hourFoot per second
17.16 mph25.168 ft/s
19.305 mph28.314 ft/s
23.595 mph34.606 ft/s
25.74 mph37.752 ft/s

Mile per hour to Foot per second — common values

Mile per hourFoot per second
1 mph1.466667 ft/s
2 mph2.933333 ft/s
3 mph4.4 ft/s
5 mph7.333333 ft/s
10 mph14.666667 ft/s
25 mph36.666667 ft/s
50 mph73.333333 ft/s
100 mph146.666667 ft/s

Convert Mile per hour to other units

mph → m/smph → km/hmph → knmph → ft/s

← Reverse: Foot per second to Mile per hour

Questions

How do you convert miles per hour to feet per second?
To convert miles per hour to feet per second, multiply by 1.466666667. For example, 21.45 mph is 31.46 ft/s.
How many feet per second are in a mile per hour?
There are 1.466666667 feet per second in one mile per hour.
How do you convert feet per second back to miles per hour?
Go the other way: multiply by 0.6818181818. One foot per second is 0.6818181818 miles per hour.

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