Total Daily Energy Expenditure (TDEE) by Activity Factor

Calculate total daily energy expenditure (TDEE) by multiplying REE by an activity factor. Sedentary (little/no exercise): REE x 1.2. Lightly active (1-3 days/week): REE x 1.375. Moderately active (3-5 days/week): REE x 1.55. Very active (6-7 days/week): REE x 1.725. Extra active (physical job + hard exercise): REE x 1.9.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
Advertisement

How to Use

Enter the values for the scenario you are assessing. Calculate total daily energy expenditure (TDEE) by multiplying REE by an activity factor. Sedentary (little/no exercise): REE x 1.2. Lightly active (1-3 days/week): REE x 1.375. Moderately active (3-5 days/week): REE x 1.55. Very active (6-7 days/week): REE x 1.725. Extra active (physical job + hard exercise): REE x 1.9. Use the tdee calculator result to inform your calculation.

Related Calculators

Mifflin-St Jeor REE

Medical

ICU Protein Needs

Medical

GLIM Criteria

Medical

Frequently Asked Questions