BEE Calculator

This calculator relies on the classic, scientifically validated Revised Benedict-Harris equations to estimate both your baseline energy and your total energy expenditure (TEE). For men, Basal Energy Expenditure is computed using the formula: menBee = 66.5 + (13.75 * kg) + (5.003 * cm) - (6.775 * age). For women, the formula is: womenBee = 655.1 + (9.563 * kg) + (1.850 * cm) - (4.676 * age). To find your Total Daily Energy Expenditure (TEE), these baseline values are further multiplied by correction factors that account for your physical activity level, thermal stress, and physiological injury or fever multipliers.

Consider a 30-year-old male who weighs 80 kg and stands at 180 cm tall. Using the male BEE formula, we calculate his baseline energy expenditure as follows: menBee = 66.5 + (13.75 * 80) + (5.003 * 180) - (6.775 * 30). This breaks down to 66.5 + 1100 + 900.54 - 203.25, resulting in a Basal Energy Expenditure of approximately 1,863.79 calories per day. If this individual has a moderate activity factor of 1.375 and standard environmental conditions (factor of 1.0), his Total Daily Energy Expenditure (TEE) would be 1,863.79 * 1.375, totaling roughly 2,563 calories burned daily.

To get the most accurate results from your BEE calculation, always use precise measurements for your current weight and height rather than estimations. Remember that your baseline caloric needs fluctuate over time as you age or change your body composition, meaning you should recalculate your numbers every few months or after significant weight milestones. Always pair your TEE results with clean tracking of your actual dietary intake to avoid underestimating or overestimating portion sizes.