Why do the Devine, Robinson, and Miller formulas give slightly different results?

Each formula was calibrated on different historical population datasets. The Devine formula is the medical hospital standard, while Robinson and Miller introduced slight adjustments for modern population averages.

Updated: August 2026 • Verified v1.2

Ideal Body Weight (IBW) Clinical Calculator (Devine & Robinson)

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Devine Formula: Men = 50kg + 2.3kg*(Height_in - 60); Women = 45.5kg + 2.3kg*(Height_in - 60)

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Understanding Your Results

Calculates Ideal Body Weight in pounds and kilograms across the 3 classic clinical formulas (Devine hospital standard, Robinson, Miller) and displays the recommended 18.5 - 24.9 healthy BMI weight range.

Practical Guidance & Next Steps

The Devine formula (1974) remains the universal clinical benchmark used in hospitals for pharmaceutical dosing and ventilator tidal volume calculations.

What is this?

A clinical health utility that calculates target ideal body weights using established medical formulas.

How does it work?

1. Select biological sex (Male / Female). 2. Enter height in feet and inches. 3. Instantly view Devine clinical weight, Robinson, Miller, and healthy BMI weight ranges.

Why use it?

Provides an objective medical benchmark for fitness goals and target healthy weights.

Technical Scope & Calculation Limitations

Calculates ideal weight based on height and biological sex; does not directly measure individual skeletal muscle mass or bone density.

Frequently Asked Questions

Created by Dr. Ben Devine in 1974, this formula calculates ideal body weight: 50 kg for men (45.5 kg for women) plus 2.3 kg for each inch over 5 feet tall. It is widely used in medicine for pharmacological dosing.

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