Healthy Weight Range Calculator
Find your healthy weight range based on the standard BMI range of 18.5 to 24.9 for your height.
About the Healthy Weight Calculator
Rather than a single ideal number, most health guidance frames a healthy weight as a range — this calculator shows the lower and upper bound of that range for your specific height, based on the standard BMI healthy range of 18.5 to 24.9.
How It Works
The calculator converts your height to meters, squares it, and multiplies by both ends of the standard healthy BMI range (18.5 and 24.9) to produce the lower and upper weight bounds for your height.
Lower Bound (kg) = 18.5 × [Height (m)]²; Upper Bound (kg) = 24.9 × [Height (m)]².
Example
Scenario: A height of 175 cm (1.75 m).
Result: A healthy weight range of approximately 56.7 kg to 76.3 kg.
Assumptions & Limitations
- Based on the standard adult BMI healthy range, which applies the same 18.5–24.9 threshold regardless of age, sex, or body composition.
- Assumes an adult body — the standard BMI range is not appropriate for children or teens, who use age- and sex-specific growth charts instead.
- A wide healthy weight range based on height alone does not account for muscle mass, so very athletic individuals may sit above this range while still being lean and fit.
- Should be used as a general reference alongside other measures like body fat percentage, not as the sole indicator of health.
Frequently Asked Questions
Why is there a range instead of a single ideal weight?
Health authorities recognize that body composition varies naturally between individuals of the same height, so a range reflects the practical reality that many different healthy bodies exist within it.
Is this the same math as BMI?
Yes — it is the BMI formula rearranged to solve for weight at the two boundary BMI values (18.5 and 24.9) instead of solving for BMI itself from a given weight.
What if my weight is above this range but I'm very muscular?
BMI-based ranges cannot distinguish muscle from fat, so athletic individuals with significant muscle mass may reasonably fall above the range while still maintaining low body fat and good health markers.