It's 495.5 miles and I think it takes about 7 1/2 hours, but you can check that (and find directions) here.
How Many Miles From Houston, Texas To Tulsa, Oklahoma?
300
I would like to know how many miles (and hours) it would take to drive from Ft Hood, Texas to Tulsa, Oklahoma?
Yes and how long does it take to drive at 75mph speed rate