carseat when to switch it

my baby is 20 pounds and long he doesnt fit anymore in his car seat does anyone know which carseat is next? thank you in advance for your help

01
    05/26/14
    8Theresa Gould
    I'd just check the weight of a car seat that can be converted to a booster seat and go from there. Our four year old is in a Britax with a five point harness.
    0
      05/26/14
      Amy Phroper
      My 2 year old is in a Radian R120. He rear faced in it until 3 months ago.
      0
        05/26/14
        I think the next seat name is a convertible car seat.
        0
        About Paris
        Current: Mcallen, Texas
        Birth: March 19
        On Moms.com since: May 24, 2014
        I'm a first time mom of one sweet baby boy its been quite the journey of a lifetime everything changes when you have a baby and i wouldn't change it