Ideal Body Weight Calculator
Ideal Body Weight is evaluated from Sex and Height. The calculation reports Devine Formula, Robinson Formula and Miller Formula.
Results
About the Ideal Body Weight Calculator
The calculator uses a multi formula configuration. Each reported value is read as a direct evaluation of the stored rules with the declared field formats and units.
Formula basis:
All formulas use height in inches; first 5 feet = 60 inches as base.
Divine: Men = 50 + 2.3 x (inches over 5 ft); Women = 45.5 + 2.3 x (inches over 5 ft)
Robinson: Men = 52 + 1.9 x (inches over 5 ft); Women = 49 + 1.7 x (inches over 5 ft)
Miller: Men = 56.2 + 1.41 x (inches over 5 ft); Women = 53.1 + 1.36 x (inches over 5 ft)
Hamwi: Men = 48.1 + 2.7 x (inches over 5 ft); Women = 45.4 + 2.27 x (inches over 5 ft)
Healthy BMI Range = 18.5 - 24.9 x Height^2 (m^2)
Interpret the outputs in the order shown by the result fields. Optional inputs affect only the outputs that depend on those variables.
Formula & How It Works
The calculation applies the following relations exactly as recorded in the metadata: All formulas use height in inches; first 5 feet = 60 inches as base. Divine: Men = 50 + 2.3 x (inches over 5 ft); Women = 45.5 + 2.3 x (inches over 5 ft) Robinson: Men = 52 + 1.9 x (inches over 5 ft); Women = 49 + 1.7 x (inches over 5 ft) Miller: Men = 56.2 + 1.41 x (inches over 5 ft); Women = 53.1 + 1.36 x (inches over 5 ft) Hamwi: Men = 48.1 + 2.7 x (inches over 5 ft); Women = 45.4 + 2.27 x (inches over 5 ft) Healthy BMI Range = 18.5 - 24.9 x Height^2 (m^2) Each output field is produced by substituting the supplied inputs into the relevant relation and then applying the declared rounding or text format.
Worked Examples
Example 1: Average US Male — 5'10" (178 cm)
Inputs
With Sex = male and Height = 178 as the stated inputs, the result is Devine Formula = 73.2 kg, Robinson Formula = 71.1 kg and Miller Formula = 70.4 kg. Each value corresponds to the declared output fields.
Example 2: Average US Female — 5'4" (163 cm)
Inputs
With Sex = female and Height = 163 as the stated inputs, the result is Devine Formula = 55.1 kg, Robinson Formula = 56.1 kg and Miller Formula = 58.8 kg. Each value corresponds to the declared output fields.
Example 3: Tall Male — 6'3" (190 cm)
Inputs
With Sex = male and Height = 190 as the stated inputs, the result is Devine Formula = 84 kg, Robinson Formula = 80.1 kg and Miller Formula = 77.1 kg. Each value corresponds to the declared output fields.
Example 4: Short Female — 5'0" (152 cm)
Inputs
With Sex = female and Height = 152 as the stated inputs, the result is Devine Formula = 45.5 kg, Robinson Formula = 49 kg and Miller Formula = 53.1 kg. Each value corresponds to the declared output fields.
Common Use Cases
- Determine a target weight goal for weight loss programs
- Check IBW for medication dosing in clinical settings
- Compare different IBW formula results
- Set a realistic healthy weight target