Formulae Information

Read this to guide you in choosing a formula calculator Here

For formulas that do not require some fields, enter Zero(0) value. For instance, Cunningham 1980 requires only weight so enter 0 for height and age. However, Institute of Medicine of the National Academies, uses all the fields, so provide the necessary values. Here are the formulae available in our database:

1. Mifflin St Jeor equations 1990
Men = 9.99 * weight + 6.25 * height -4.92 * age + 5
Women = 9.99 * weight + 6.25 * height -4.92 * age - 161

2. Harris-Benedict equations 1919
Male: BMR = 66.4730 + 13.7516(w) + 5.0033 x (height in cm) - 6.7550 (age)
Women: BMR = 655.0955 + 9.5634 (w) + 1.8496 x (height in cm) - 4.6756 (age)

3. Revised Harris-Benedict equations 1984
Males: 88.362+[13.397*weight (kg)]+[4.799*height (cm)]-[5.677*age (years)]
Females: 447.593+[9.247*weight (kg)]+[3.098*height (cm)]-[4.33*age (years)]

4. Katch McArdle 1996
BMR = 370 + (21.6 X lean body mass in kg)

5. Owen equations
Men = 879 + 10.2 * weight (in kg)
Women = 795 + 7.18 * weight (in kg)

6. Cunningham equations
1991 BMR = 370 + 21.6 x FFM
1980 BMR = 500 + 22 x FFM

7. IMNA 2002
Males: 662-[9.53*age (years)]+PA*[15.91*weight (kg)]+[539.6*height (m)]
Females: 354 - [6.91*age(years)]+PA*[9.36*weight (kg) + 726*height (m)]

8. Livingstone et al. (2005) equations
Males: 293*weight0.4330 -(5.92*age)
Females: 248 * weight0.4356 - (5.09 * age)

9. Fleisch equations
Men = 24 * BSA¹ * (38 - 0.073 * (age - 20))
Women = 24 * BSA¹ * (35.5 - 0.064 * (age - 20))

10. Henry Oxford 2005 Equation
BMR = 864 - 9.72 * age + 6.8 * weight (kg) + 10.2 * height (cm)

11. Schofield 1985 Equations
Men =88.362 + (13.397 * weight (kg)) + (4.799 * height (cm)) - (5.677 * age (years))
Women = 447.593 +(9.247 * weight (kg)) + (3.098 * height (cm)) - (4.330 * age (years))

Abbreviations and their Meaning

FFM = Fat Free Mass

PA = Physical activities

BSA = Body Surface Area