TDEE Calculator (Total Daily Energy Expenditure)

TDEE (Total Daily Energy Expenditure) estimates the total number of calories you burn in a day, combining your BMR with your activity level. It's commonly used as a starting point for weight loss, maintenance, or gain plans.

Your body burns calories even at complete rest — for organ function, circulation, and basic cellular processes — and that resting burn is your BMR (Basal Metabolic Rate). On top of that baseline, everyday movement, structured exercise, and even digesting food all add further calorie burn throughout the day. TDEE captures the full picture by scaling BMR up according to your typical activity level, giving a single practical number to plan a diet around rather than working from resting metabolism alone.

TDEE is usually the second step after estimating BMR — try the BMR Calculator first if you want to see your resting number on its own. Once you have a TDEE target, the Macro Split Calculator can help translate that calorie number into protein, carb, and fat targets.

TDEE starts from your BMR (the calories you burn at complete rest) and scales it up by an activity multiplier that reflects how much you move in a typical week — from 1.2 for a mostly sedentary lifestyle to 1.9 for very intense daily activity. The higher the multiplier, the more calories your daily routine adds on top of your resting burn.

These multipliers are population averages tied to broad activity categories, not a precise measurement of your individual metabolism. Two people with identical BMR and the same selected activity level can still have somewhat different actual calorie burn, since factors like muscle mass, non-exercise movement (fidgeting, walking around during the day), and individual metabolic variation aren't captured by a single multiplier. That's why TDEE works best as a starting estimate to adjust based on real weight trend over a few weeks.

Your TDEE is the calorie level at which your weight should stay roughly stable. Eating consistently below it creates a deficit for weight loss; eating above it creates a surplus for weight gain. The mild and aggressive loss figures reflect common 300–600 kcal/day deficits used in most weight-management plans.

The weight gain figure adds roughly 300 kcal/day, a moderate surplus commonly used to support gradual weight or muscle gain without excessive fat gain. None of these figures are hard rules — actual results depend on adherence, individual metabolism, and how activity level itself might shift once a diet begins, which is why revisiting the calculation periodically tends to work better than treating the first result as fixed indefinitely.