How far can human travel at 100mph equal to a light year?

Answer 1

A light year is a distance; so the wording of the question is it's own answer:

1 light year (about 5 878 499 810 000 miles or 9 460 528 400 000 kilometers)

That distance would take about 58 784 998 100 hours at 100 mph which is about 6 706 166 years and a few months (which isn't all that long when you think that there have been human-like beings who could make tools and probably talk to each other for more than a tenth of that time).

Answer 2

At a speed of 100 mph, in one year, a human would travel approximately 876,000 miles. This is significantly less than the distance of one light year, which is about 5.88 trillion miles. Therefore, at 100 mph, a human would cover only a fraction of the distance of a light year in a year's time.