Ideal Weight Calculator

1. Select your unit system. Imperial uses feet and inches; Metric uses centimeters. The underlying formulas are the same either way.
2. Choose your gender. All four ideal weight formulas calculate different targets for men and women based on differences in bone density, muscle mass, and body composition. The formulas typically give women a lower target at the same height.
3. Enter your height. Measure without shoes and stand flat against a wall for accuracy. Height directly determines the output: every inch (2.54cm) corresponds to roughly 5-6 lbs in ideal weight.
4. Read the results. Four medical formulas are shown along with the healthy BMI weight range. The formulas tend to cluster within a 10-15 lb range. Use the middle of that range or the healthy BMI band as your realistic target.

These formulas work best for average-build adults. Athletes with high muscle mass or individuals with unusual proportions may fall outside the predicted ranges.

All four formulas use height as the primary input and are calculated separately for men and women. Base values assume 5 feet (60 inches / 152.4cm) and add a fixed amount per additional inch:

Example: 5'8" (68 inches) male, Devine formula: 50 + (8 × 2.3) = 50 + 18.4 = 68.4 kg = 150.8 lbs. Healthy BMI weight range for 5'8": 125-163 lbs (BMI 18.5-24.9).