It's not about height it's weight. Unfortunately I don't remember what the min/max is.
sixty pounds to not sit in a booster seat
12 and under
It depends, as they need to fit the weight and height requirements specified in your vehicle manual, to sit in a seat unassisted. Unless there is a local bylaw requiring people of a certain age, height or weight either to sit in a booster seat, or not in a booster seat.
In the UK, children must use a booster seat until they are 135 cm (4 feet 5 inches) tall or until they reach the age of 12, whichever comes first. Once they meet either of these criteria, they can sit in a regular car seat without a booster. It's important for safety that the vehicle's seat belt fits properly across the child's shoulder and lap. Always check the specific regulations and guidelines, as they may vary.
you have to be 136cm or over
about 40 ponds
80lbs
A six year old can be placed in the front seat but they must use a booster seat if they are under 135cm tall. Under no circumstances should a rear facing booster seat be used in the front seat.
In Oklahoma, children under the age of 8 must ride in a car seat or booster seat unless they are 4'9" tall. It is recommended that children 12 and under should sit in the back seat when possible.
You have to be 140cm
11 but if you are 130cm s you can sit in the front without a booster seat :)
A child should be at least 4 feet 9 inches tall to safely use a booster seat.