Time from Distance in Miles and Speed in Feet per Second

Calculate the time it takes to ride, walk, swim, or run a certain distance in miles based on a speed in feet per second.

Formula

time = distance ÷ speed

Conversions

one mile (mi) = 1.609344 kilometres (km)
one mile (mi) = 5280 feet (ft)
one hour (hr) = 3600 seconds (sec)
one foot per second (ft/sec) = 0.3048 metres per second (m/sec)

Example Calculation

How long will it take to walk 10 miles at a speed of 3 feet per second?

First, convert the 10 miles to a distance in feet;

5280 * 10 = 52800

10 miles equals 52800 feet

Divide the distance of 52800 feet by the speed of 3 feet per second to get the time in seconds;

52800 ÷ 3 = 17,600 

It will take 17600 seconds to travel the 10 miles at a speed of 3 feet per second.

Convert to decimal hours by dividing by 3600 ( there are 3600 seconds in one hour);

7600 ÷ 3600 = 4.8888888889

The time in hours equals 4.8888888889 hr. = 4 hr - 53 min -