Normal BMI Range by Age Calculator
See how the healthy BMI range shifts across life stages. Enter your age, weight, and height to get your BMI with age-appropriate guidance for children, adults, and seniors.
BodyStd · https://bodystd.com/ · 8/10/2026
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Normal BMI Range by Age Calculator
See how the healthy BMI range shifts across life stages. Enter your age, weight, and height to get your BMI with age-appropriate guidance for children, adults, and seniors.
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Adult ranges follow CDC BMI guidelines; senior guidance reflects geriatric nutrition research:CDC BMI guidelines.
Frequently Asked Questions
The CDC applies the same 18.5–24.9 range to all adults. However, research suggests adults 65+ may have a slightly higher optimal BMI (roughly 23–30), because a modest extra reserve is associated with better outcomes in older age.
Disclaimer: This calculator is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition.