Healthy Weight Calculator
Enter your height to find the weight range considered healthy for that height, based on the standard 18.5–24.9 BMI band.
Your calculation is performed in your browser.This result is an estimate for informational and educational purposes. It isn’t a diagnosis and isn’t a substitute for advice from a doctor, registered dietitian, or other qualified professional. See our methodology and sources for the formula used and its limitations.
How it works
The calculator rearranges the BMI formula to solve for weight at the two BMI boundaries that define the normal weight category — 18.5 and 24.9 — giving a lower and upper healthy weight bound for your height.
Formula & methodology
The healthy range is the set of weights that give a BMI between 18.5 and 24.9 at your height. The midpoint is simply halfway between the two ends.
Min weight (kg) = 18.5 × height (m)²Max weight (kg) = 24.9 × height (m)²Midpoint = (Min + Max) ÷ 2What each term means
- Height
- Standing height in metres.
- The numbers 18.5 and 24.9
- The lower and upper limits of the normal-weight BMI range.
Worked example
For a height of 170 cm, the healthy weight range is about 53.5 kg to 72.0 kg.
Common uses
- —Finding the full range of weights considered normal for your height, rather than a single target number.
- —Setting a realistic weight loss or gain goal that falls within a recognized healthy band.
- —Cross-checking your current weight against a standard reference range.
Important notes
- —This range is derived purely from height using the BMI method — it does not account for muscle mass, frame size, or body composition.
- —For a broader perspective, compare this range against the Ideal Weight Calculator, which uses separate clinical formulas.