The table below uses your average speed in MPH to determine time to complete a 26.2 mile Marathon. In order to finish a Marathon in under an hour twenty minutes your average speed would need to be 20 miles per hour or a 3 minute per mile pace. Knowing this is helpful for training.
Average Speed Total Marathon Time Pace per mile
(in mph) (hour, minutes) (minutes, seconds)
16.0 1 hour, 38 minutes 3 minutes, 45 seconds
16.5 1 hour, 35 minutes 3 minutes, 38 seconds
17.0 1 hour, 32 minutes 3 minutes, 32 seconds
17.5 1 hour, 30 minutes 3 minutes, 26 seconds
18.0 1 hour, 27 minutes 3 minutes, 20 seconds
18.5 1 hour, 25 minutes 3 minutes, 15 seconds
19.0 1 hour, 23 minutes 3 minutes, 9 seconds
19.5 1 hour, 21 minutes 3 minutes, 5 seconds
20.0 1 hour, 19 minutes 3 minutes, 0 seconds
20.5 1 hour, 17 minutes 2 minutes, 56 seconds
21.0 1 hour, 15 minutes 2 minutes, 51 seconds
21.5 1 hour, 13 minutes 2 minutes, 47 seconds
22.0 1 hour, 11 minutes 2 minutes, 44 seconds
22.5 1 hour, 10 minutes 2 minutes, 40 seconds
23.0 1 hour, 8 minutes 2 minutes, 37 seconds
Thanks to Skategirl Renee’ for the information above!