1 mile = 5280 ft, 1 hour = 3600 secs. So 1 mph = 5280/3600 = 1.47 ft/sec. For a ratio you can easily remember, 60 mph = 88 ft/sec
The conversion of f/s to m/hr is:
m/hr=(ft/sec)x(3600/5280)
60 mph = 88 feet per second 70 mph/60 mph x 88 = 102.6 feet per second or multiply mph x about 1.46
877 feet per second = 598 mph
66 feet per second = 45 mph.
(mph x 1.466 = feet per second). So, 70 mph x 1.466 = 102.62 feet per second.
Formula: feet per second x 0.681879 = mph30 feet per second x 0.681879 = 20.45637 mph
I guess fps stands for feet per second. Divide that number by whatever the number of feet there is in a mile, to convert to miles per second. Then multiply the result by 3600 to convert from "per second" to "per hour".
221.591 mph (rounded)
Use this formula: mph x 1.467 = feet per second42 x 1.467 = about 61.6 feet per second.
Use this conversion: mph x 1.467 = feet per second
240 mph = 352 feet per second.
The conversion factor is 1.466. So, 45 mph x 1.466 = 65.97 feet per second.
350 mph = 513.3 feet per second.