The Schofield Equation is a method of estimating the basal metabolic rate (BMR) of adult men and women published in 1985.
[3] The equations for estimating BMR in kJ/day (kilojoules per day) from body mass (kg) are:[4] Men: Women: The equations for estimating BMR in kcal/day (kilocalories per day) from body mass (kg) are: Men: Women: Key: W = Body weight in kilograms SEE = Standard error of estimation The raw figure obtained by the equation should be adjusted up or downwards, within the confidence limit suggested by the quoted estimation errors, and according to the following principles: Subjects leaner and more muscular than usual require more energy than the average.
Patients at the young end of the age range for a given equation require more energy.
Effects of age and body mass may cancel out: an obese 30-year-old or an athletic 60-year-old may need no adjustment from the raw figure.
[5] These equations were published in 1989 in the dietary guidelines and formed the RDA's for a number of years.