There are 5280 feet in a mile, and 3600 seconds in an hour. Thus:
22 ft/s = (22/5280)(3600) = 15 mph.
2500 feet per second (fps) is equivalent to approximately 1704 miles per hour.
500 feet per second = 340.9 mph
At 1000 mph, there are approximately 1467 feet per second.
92 mph = 134.93 feet per second
14 kph = 12.76 feet per second
250 feet per second = 170.45 mph
300 feet per second = 204.54 mph
1,309 mph
54 mph is 79.2 feet per second.
150 mph
About 36.5 mph.
395 (feet / second) = 269.32 mph
4,815 mph
It is 2,727 MPH. And that's fast.
2500 feet per second (fps) is equivalent to approximately 1704 miles per hour.
96 (feet / second) = 65.45 mph
500 feet per second = 340.9 mph