To convert the time it takes to run one mile (3 minutes 43 seconds) into miles per hour, you first need to convert the time into hours. There are 60 minutes in an hour, so 3 minutes 43 seconds is equivalent to 3.72 minutes. To convert this to hours, you divide by 60, giving you 0.062 hours. Now, to find miles per hour, you divide 1 mile by 0.062 hours, which equals approximately 16.13 miles per hour.