Car Seats Quick Sizing Guide

Types of Car Seat

Looking for a car seat that’s the right fit for your child? Your child’s weight, not age, is the key factor when deciding which car seat is suitable and safe.


 FROM BIRTH TO 15 MONTHS (approx)    Height 40cm - 85cm



Group 0 and Group 0+ Car Seats.

These seats can fit on a pram chassis and with the aid of a suitable base will also fit into the car. Great for moving baby around without waking.
  • They are rear-facing, which is the safest way for babies to travel
  • Many models can be used with Isofix fittings, so you don’t need to use a seatbelt
  • They feature a carry handle, which is useful for transporting a sleeping baby from the car) and curved base for gentle rocking
  • Comfort extras include cushions, head-huggers and padded straps


    FROM BIRTH TO 4 YEARS (approx)   Height 40cm - 105 cm


    Group 0+ and 1 car seats.

    These seats stay in the car and you belt your baby in every journey. Available in various styles including the spinning base for ease of use.
    • This style is approved across two categories and easily adjusts as your child grows
    • Most models have a reclining mechanism for added comfort
    • Features include padded, washable seat covers that can be easily removed


    FROM BIRTH TO 12 YEARS (approx)   Height 40cm - 150cm

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    Group 0+, 1, 2 and 3 car seats.

    These seat may look a little more expensive than others but lasts for 12 YEARS so actually probably come out cheaper in the long run.
    • They’re a lasting option, adapting as your child grows
    • They convert to a high back booster seat – ideal for older children until they can safely use an adult seatbelt
    • They feature cushioned seat and supports to keep your child safe and comfortable



    FROM 9 MONTHS TO 4 YEARS (approx)   Height 85cm - 105cm

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    Group 1 seats.

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    FROM 9 MONTHS TO 6 YEARS (approx)  Height 85cm - 150cm

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    Group 1, 2 seats.

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    FROM 9 MONTHS TO 12 YEARS (approx)  Height 85cm - 150cm

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    Group 1, 2 seats.

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      By law, all children under 135cm tall or under 12 years of age must have their own car seat. European regulations define 8 groups of seat. All the car seats in our range are designed to give your child the best possible protection and meet the current safety standards as set out in ECE R44.03 (or R44.04).

      It’s recommended that a child continues to use a rear-facing car seat until they are 15 months old. This is because a child’s body below this age is particularly vulnerable to forceful impacts and a rear-facing seat will provide additional protection.  




      Child's weight*

      Approx. age of child

      Child's height¹


      Birth - 10kg/22lb

      Birth to 6 - 9 months

      40 - 85cm


      Birth - 13kg/29lb

      Birth to 12 - 15 months

      40 - 85cm

      0+, 1

      Birth - 18kg/40lb

      Birth to 4 years

      40 - 105cm
      0+, 1, 2 , 3 Birth - 36kg/79lb Birth to 12 years 40 - 150cm


      9 - 18kg/20 - 40lb

      9 months to 4 years

      85 - 105cm

      1, 2

      9 - 25kg/20 - 55lb

      9 months to 6 years

      85 - 150cm


      15 - 25kg/33 - 55lb

      4 to 6 years

      105 - 150cm

      1, 2, 3

      9 - 36kg/20 - 79lb

      9 months to 12 years

      85 - 150cm

      2, 3

      15 - 36kg/33 - 79lb

      4 to 12 years

      105 - 150cm
        *Applies to R44.04 seats   ¹Applies to iSize seats


      • To ensure your child’s safety in a car, it is important that you choose the right car seat and fit it correctly

      • Don’t leave even the shortest journey to chance: always take the time to harness your child in an appropriate car seat

      • Until they’re 12 years old or 135 centimetres tall, whichever comes first, children must normally use a child car seat appropriate for their weight in any vehicle (including vans and other goods vehicles)

      • Rear-facing baby seats must not be used in a seat protected by a frontal airbag unless the airbag has been deactivated manually or automatically

      • Always follow the manufacturer’s fitting instructions and keep them with the seat

      • Our Partners are trained to advise you on the right type of seat for your child and for your car




      Manufacturers are no longer allowed to produce backless booster seats for children shorter than 125cm or weighing less than 22kg.

      These regulations, in force since February 2017, are designed to improve road safety for smaller children. Seats with backs are deemed safer as they offer better side impact protection.

      Consider changing your booster seat or cushion to a car seat with a back, since they’re deemed to offer better protection to smaller children. Models that are currently in the marketplace can continue to be sold and any existing seats you own can still be used in accordance with government guidelines, provided they have the standard safety mark ECE R44.