Tall toddler - when do I go from group1 to group 2 car seat?

[forevared]

DS1 is very tall for his age and I noticed this morning the top of his head is now above the top of his group 1 car seat. Do I go up to group 2 now or is it when his eye level is above the top of the seat? Can't remember!

It's usually dependent on their weight rather than height.

eyes level with top of seat.

must then be 15kgs for group 2. if too light, get a group 1/2/3 combination seat so he is still in his 5 point harness but has theprotection of the large back & sides on gp 2.