FREE HEALTH TOOL
Ideal Weight Calculator
Find your ideal body weight using four established medical formulas based on your height and gender.
Average Ideal Weight
70.1 kg / 154.5 lb
Devine Formula
Most widely used in clinical settings
70.5 kg
155.3 lb
Robinson Formula
Updated Devine formula (1983)
68.9 kg
151.9 lb
Miller Formula
Preferred for taller individuals
68.7 kg
151.6 lb
Hamwi Formula
Used in diabetes management
72.2 kg
159.2 lb
Why Use Our Ideal Weight Calculator?
Four Medical Formulas
Uses the Devine, Robinson, Miller, and Hamwi formulas - all established in clinical and medical research.
Average Result
Shows the average across all four formulas as a single recommended range at the top of the results.
Formula Notes
Each formula includes a note explaining its clinical use so you understand which one applies to your situation.
Metric and Imperial
Enter height in centimeters or feet and inches. Results shown in both kg and lb.
Male and Female Formulas
All four formulas have separate calculations for male and female, which the calculator handles automatically.
No Sign-up Required
Open and get your results instantly with no account or email needed.
Frequently Asked Questions
What is ideal weight based on?
The four formulas (Devine, Robinson, Miller, and Hamwi) all use height and gender as inputs. They were developed from clinical studies and are used in medical settings.
Which formula should I use?
The Devine formula is the most widely used in clinical settings. The Robinson formula is a popular update. Use the average across all four for a balanced estimate.
Is ideal weight the same as healthy weight?
They are related but not identical. The BMI healthy weight range uses a broader band. Ideal weight formulas give a single point estimate. Both are useful references.
What if my height is below 5 feet?
The formulas were derived for heights at or above 4 feet (48 inches). The calculator requires a minimum of 4 feet to show results.
Is my data private?
Yes. Your height and gender are never sent to any server. All calculation happens in your browser.
Is the ideal weight calculator free?
Yes. Completely free with no sign-up or account required.
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