# Devine Formula

The Devine Formula is a popular equation for estimating ideal body weight using a height measurement only. Dr B.J. Devine published the following formula in 1974. The Devine formulas were initially developed to set certain medication doses based on body weight and height. However, over time, their use has spread beyond their initial intended purpose. As with all calculations, it is an estimation only and should be used with caution. See also the similar Broca Index.

equipment required: stadiometer for measuring height.

procedure: the Devine Formula requires just a single measurement of height in feet and inches. Estimate an Ideal Body Weight using the formula below. For example, a man six foot tall has an ideal weight of 77.6 kg (50 + 2.3x12) where a six foot woman ideally should weight 73.1 kg (45.5 + 2.3x12)

men: Ideal Body Weight (in kg) = 50 + 2.3 kg x (height - 60 inches)
women: Ideal Body Weight (in kg) = 45.5 + 2.3 kg x (height - 60 inches)

target population: these equations are suitable for the general population, and only applicable for people taller than 60 inches (5 foot).

advantages: this is a simple calculation from a single standard height measurement.

disadvantages: this is a general approximation which may not suit all populations.

other comments: the Devine formula is a commonly used formula on the internet, and is found on numerous pages that have a online calculator for determining ideal body weight.

reference: Devine, BJ. Gentamicin therapy. Drug Intell Clin Pharm 1974;8:650–5.

Share: