How tall do you have to be to ride in the front seat o a car?

As long as your more then 60 sum pounds and 3' 5" I believe you can sit in the front seat. I started sitting in the front seat when I was about 6 - 7 so unless your a smart 5 years and under child, you can sit up there. #2 answ: This may depend on the state. I know that Kansas for instance use to have stricting laws on this subject then Arizona.