How long does it take a fat man to run a football field?

that depends on the person. Adrian Peterson can run 100 yards at a record of 12. something seconds, and he is very fast

1 mile = 1.609 km, thus to run 1km would take 9.53s / 1.609 = 5.92s

It doesn't take very long.

Light travels 186,300 miles per second. A football field is 100 yards long. Did you know that Google has a built-in calculator, and can do easy conversions? Like this... Type in "100 yards in...

a really good high school time would be between 40 and no higher then 50 a older person would be around a 1 or 1:30 depending on age