Tools · Car Seat
Kansas Car Seat & Booster Checker (2026)
Enter your child's age, height, and weight to see the minimum seat stage Kansas law requires and the first-offense fine ($60). This is the legal minimum — not best safety practice.
Kansas car seat checker
4′9″ = 57 in. Enter only the boxes you have. Kansas uses from age 4, a booster is required while the child is under 8 AND under 80 lb AND under 4′9″; reaching age 8, 80 lb, or 4′9″ exits.
Kansas does not legislate rear-facing vs forward-facing by age; it requires a restraint appropriate per the manufacturer's instructions. Best practice from AAP (the pediatricians' association) and NHTSA (the federal highway-safety agency), not Kansas law: rear-facing to age 2+, then a harness, then a booster.
- Child
- Not entered
- Minimum legal stage
- Enter age / height / weight
- Booster-exit rule
- from age 4, a booster is required while the child is under 8 AND under 80 lb AND under 4′9″; reaching age 8, 80 lb, or 4′9″ exits
- First-offense fine
- $60
Plain-language summary, not legal advice.
This shows the minimum legal requirement in Kansas, not best safety practice, which is usually stricter, and not legal or safety advice. Always follow your car seat's manufacturer instructions. For the full four-stage rules, front-seat rule, and citation, see the Kansas car seat law reference, cited to K.S.A. §8-1344 (last reviewed 2026-07-11).
How Kansas car seat law works
Kansas keeps its statute focused on the booster years and stays quiet on orientation. There is no rear-facing or forward-facing age in the law, so those stages are best practice here, not Kansas law. Under 4, a child needs a full child restraint. The booster rule then covers ages 4 through 7 and adds two size lines: a child in that age range still needs a booster while under 80 lb OR under 4′9″, and reaching age 8, 80 lb, or 4′9″ ends it. Because the trigger is "under 80 lb OR under 4′9″," a smaller child can stay in the booster on either measure until age 8. Kansas has no front-seat age law. The fine is $60, and the ages 4–7 booster rule is primary enforcement, so an officer can stop a car for it alone.
This checker shows the Kansas minimum legal requirement — not best safety practice, which is usually stricter — and is not legal or safety advice. For the full four-stage rules, front-seat rule, and citation, see the Kansas car seat law reference.
Car seat checkers for other states
Same tool, each with its own booster-exit rule.