🚗 Car Seat Age Calculator

📖 How It Works

Car seats protect children in four stages: rear-facing from birth, forward-facing with a 5-point harness from about age 2, booster seats from about age 4, and regular seat belts from about age 8. This calculator tells you which stage your child falls into based on their exact age today.

Age is just the starting point. Every car seat model has its own height and weight limits printed on the label, and your child should stay in each stage until they outgrow those limits — not just until they hit a birthday. Many experts recommend keeping kids rear-facing well past age 2 if the seat allows.

Car seat laws vary by state and country, and booster seat requirements in particular differ widely. Always check the rules where you live, and when in doubt, keep your child in the more protective stage longer.

💡 Why It Matters

📋 Car Seat Stages by Age