This calculator estimates your ideal body weight based on your height and gender using the three most popular formulas: Devine, Robinson, and Miller. These formulas estimate healthy body weight ranges used in medical settings.
Formula Used
Devine (Male) = 50.0 + 2.3 × (Height in inches − 60)
Devine (Female) = 45.5 + 2.3 × (Height in inches − 60)
Height
— measured in inches (60 inches is the baseline, equivalent to 5 feet)
2.3 kg
— the ideal weight added for every inch of height above 5 feet
Example Calculation
For a female who is 5 feet 5 inches tall (65 inches total): Devine = 45.5 + 2.3 × (65 − 60) = 45.5 + 11.5 = 57.0 kg. The calculator displays the ranges computed across all three formulas.
Frequently Asked Questions
Ideal weight is calculated using medical formulas (Devine, Robinson, Miller) that establish a base weight for a person 5 feet tall, adding a set weight increment for every inch above that height.
Rather than a single 'ideal' weight, health organizations recommend aiming for a BMI range of 18.5 to 24.9, which corresponds to a healthy weight buffer for your height.
No. These formulas are based on height and gender averages. They do not account for muscle mass, bone density, or body frame size, and can underestimate ideal weight for muscular individuals.
Each formula (Devine, Robinson, Miller) was developed in different research studies using slightly different datasets, resulting in minor differences in the weight added per inch of height.
No. Men naturally have higher bone density and muscle mass, so ideal weight formulas allocate a higher base weight for men of the same height.