A car is traveling 150 feet per second. Convert this to miles per hour.

There are 3600 seconds in 1 hour.

Multiply feet per second by 3600 to get feet in 1 hour:

150 x 3600 = 540,000 feet in 1 hour.

1 mile = 5280 feet.

Divide feet per hour by 5280 to get miles per hour:

540,000 / 5280 = 102.27 miles per hour.