TDEE Calculator
with Maintenance, Deficit & Surplus Targets

What TDEE means

Total Daily Energy Expenditure, usually shortened to TDEE, is an estimate of how many calories your body uses across a full day once both rest and activity are considered. It starts with BMR, which estimates resting energy use, and then applies an activity multiplier to reflect movement, exercise, and lifestyle.

This is why TDEE is usually higher than BMR. BMR reflects the body at rest, while TDEE reflects daily living. For calorie planning, TDEE is usually the more practical starting point because it is closer to real daily energy use.

Core formula

How activity level changes calorie needs

The activity multiplier is what turns BMR into TDEE. A sedentary profile adds only a modest increase above resting burn, while very active and extra active profiles push the result much higher because more daily movement means more energy use.

That is also why choosing the right activity category matters. If the selected category is too high or too low for your real routine, the final TDEE estimate can shift noticeably.

Standard activity levels

Using TDEE for calorie targets

TDEE is often used as a maintenance estimate. From there, people sometimes build general deficit or surplus targets depending on their goals. A deficit target sits below maintenance, while a surplus sits above it.

These target blocks are only general planning tools. They do not guarantee a specific outcome, and they do not capture every biological factor that influences energy use. They are best treated as a starting point for adjustment rather than a final answer.

Frequently Asked Questions