how long does it take to walk a mile on average
On average though, a mile can be walked in about 15-20 minutes. Therefore walking a half-marathon will take an average of 3-4 hours depending on how fast you are walking per mile.This of course will depend on where you live and what your preferences are.n average though, a mile can be walked in about 15-20 minutes. Therefore walking a half-marathon will take an average of 3-4 hours depending on how fast you are walking per mile. This of course will depend on where you live and what your preferences are.