Total daily energy expenditure
Calculate your estimated TDEE from resting energy needs and activity, then compare maintenance, deficit, and surplus targets.
Your inputs
General estimate for adults aged 18-80. Not medical advice.
Use your result
Your TDEE is an estimate of average daily energy use, not a lab measurement. Day-to-day expenditure changes with movement, training, sleep, and other factors, so the most useful result is a starting range.
The calculator estimates resting energy expenditure with the Mifflin-St Jeor equation. It then multiplies that result by the activity level you select.
BMR represents energy used at complete rest. TDEE includes normal movement and exercise, making it the more useful estimate for setting a daily calorie target.