Baby Growth Calculator
See the average expected weight and height for a baby at a given age — a rough guide only.
Show solution steps
What is the Baby Growth Calculator?
A baby growth calculator gives an approximate expected weight and height for an infant's age, using common pediatric averages. Every baby grows differently.
How to Calculate
Uses simple age-based pediatric approximations for weight and height, adjusted slightly by sex.
Formula
Approximate averages by age in months.
How to Use
- Enter your details in the fields above.
- The result updates instantly as you type.
- Use Copy, Print or Download PDF to save your result.
Frequently Asked Questions
Should I worry if my baby differs?
Not necessarily u2014 healthy babies vary widely. Always use your pediatrician's WHO growth charts and advice rather than a rough estimate.
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