How the TDEE estimate works
Mifflin–St Jeor estimates resting energy expenditure from weight, height, age, and a sex-specific equation constant. This calculator labels that estimate BMR for familiar usage, then multiplies it by your selected activity factor. Actual energy expenditure varies with body composition, movement, training, health, and measurement error.
Informational only. This tool is for adults and does not provide medical advice, diagnosis, treatment, or a guaranteed outcome. A qualified professional can consider your health history and individual needs.