Harris-Benedict Basal Energy Expenditure (revised)
Harris-Benedict basal energy expenditure (revised Roza 1984 constants), the classic comparator to Mifflin-St Jeor; optional activity factor for TDEE.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Weight
- 70 kg
- Height
- 175 cm
- Age
- 40 yr
- Sex
- male
Result: BEE 1639 kcal/day.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Note
- TDEE = BEE × activity factor. Harris-Benedict overestimates resting expenditure by ~5% versus Mifflin-St Jeor, the preferred contemporary equation.
What you enter
- Weight
- Height
- Age
- Sex
- Activity factor (optional, for TDEE)
How this is calculated
- Formula
- Male BEE = 88.362 + 13.397 × wt(kg) + 4.799 × ht(cm) − 5.677 × age; female BEE = 447.593 + 9.247 × wt + 3.098 × ht − 4.330 × age.
Harris JA, Benedict FG. A biometric study of basal metabolism in man. Proc Natl Acad Sci USA. 1918;4(12):370-373. Revised constants: Roza AM, Shizgal HM. Am J Clin Nutr. 1984;40(1):168-182. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.