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Which is the Right Size Car Seat?

In order to guarantee a safe and secure fit, it is crucial to ensure that the car seat you purchase is suitable for the weight of your child. Child and baby car seats are divided into eight different groups, in accordance with rigorous safety regulations and the European Standard R44.04. The standard divides the groups by your child's weight, rather than age, as shown in the table below:

Child's weight
Approx. age of child
birth to 10kg/22lbs
birth to 9 months
birth to 13kg/29lbs
birth to 12 months
0+ and 1
birth to 18kg/40lbs
birth to 4 years
9 months to 4 years
1 and 2
9 months to 6 years
4 to 6 years
1,2 and 3
9 months to 12 years
2 and 3
4 to 12 years

Car Seats are structured in groups based on children’s weight. Because age alone is not an accurate way of choosing a car seat, an industry standard system also takes weight into account. Never buy a car seat that is too big and always make certain it is appropriate for your child’s weight - as only the correct seat can provide the right level of safety.

Some car seats span more than one group, meaning that they are manufactured to take a heavier weight, giving them a longer life.

When should you purchase a new car seat?

Move from a Group 0+ to a Group 1 car seat when your child can sit up unaided with confidence, exceeds the weight limit, or if their head is higher than the top of the infant carrier.

Move from a Group 1 to a Group 2-3 car seat when the weight limit is exceeded, or your child’s eye-line is higher than the seat’s highest point.

Back to car seats: the definitive guide homepage

Buying Your Car Seat

Fitting Your Car Seat

This section includes information on the different types of car seat, explaining which seat is the right size for your child, what to look for, useful accessories and important things to remember before you buy. The car seat safety guide, sections on child car seats and the law, and car seats on test, provide the vital safety information that you need when buying your car seat. This section also includes information on fitting your seat, with a step-by-step guide to installing your car seat, a list of common problems and information on where to get help.

With most car seats in the UK being fitted incorrectly, it is crucial that you have access to the right information when selecting and fitting your child's seat. Our trained staff are all experienced car seat fitters and we have used their collective knowledge to put together this information. The golden rule is that it is absolutely essential that you get the fit checked if you are in any doubt at all.. Some manufacturers have car compatibility fitting guides on their websites, however it should be remembered that these are just guides and are not definitive lists. Not all car seats will fit all cars, and no car or car seat manufacturer can guarantee a secure and safe fit. All cars are different, even two of the same make and model can have different length seat belts!

It is therefore essential to ensure your car seat is fitted correctly, in order to secure your child's safety whilst travelling in the car. The showroom is based just outside of Wallingford and we are always happy to check the fitting of your car seat.

Three important points to remember about car seats are:

  • Always buy a car seat to suit your child's weight rather than height.
  • Not all car seats fit all cars; check the model you have chosen will fit your car. Seek professional advice if you are unsure.
  • Always buy a car seat because it has safety features that improve fit and protection, not because it has attractive fabric choices or good value accessories.

Useful Links

Maxi Cosi CabrioFix Isofix Car Seat Maxi Cosi Pearl Isofix Car Seat Recaro Monza Seatfix Car Seat