How long to drive across Iowa?

Answer 1

Assuming you're going across Interstate 80, that roads spans 306 miles through Iowa, and typically has a 75 MPH speed limit. If you were to actually average 75 MPH and not stop for fuel, bathroom breaks, etc, you'd be looking at a little over four hours of driving.

Answer 2

6-7 hours max, cuz it takes 18 -20 ti get across Texas... The other states are wayyy smaller! Indiana only takes two hours