Healthy Weight by Age
Enter height (and current weight, for comparison) to see the standard healthy weight range.
About this calculator
This healthy weight calculator calculates the weight range that corresponds to a BMI of 18.5–24.9 — the standard 'normal' band — for a given height, so you can see where a current weight sits relative to that range.
Healthy weight varies by build, muscle mass, age and other individual factors, so use this as a general reference rather than a personal target.
How it works
Enter the required details
Fill in the fields above — weight and height, or date of birth depending on the tool.
Calculate
The calculator applies the standard formula.
Read the result with context
Use the notes alongside the result — these are general reference tools, not medical diagnoses.
Frequently asked questions
Is this medical advice?
No. These calculators provide general, population-level reference information only and are not a substitute for professional medical assessment.
Why do the results include a disclaimer?
Health metrics like BMI and growth percentiles are screening tools, not diagnoses — individual factors like muscle mass, frame size, and health history matter and can't be captured by a simple formula.
Who should I talk to about my results?
A doctor, paediatrician, or registered dietitian can interpret these figures properly in the context of your overall health.