TDEE (Total Daily Energy Expenditure) is the total number of calories your body burns in a day, accounting for your basal metabolic rate plus all physical activity. It is the calorie level at which your weight stays constant.

How is TDEE different from BMR?

BMR (Basal Metabolic Rate) is the calories your body burns at complete rest to maintain basic functions. TDEE is BMR multiplied by an activity factor, so TDEE is always higher than BMR — often 20–80% higher depending on how active you are.

How do I use TDEE for weight loss?

Eat consistently below your TDEE to lose weight. A deficit of 500 calories per day below TDEE typically yields about 0.5 kg of fat loss per week. Avoid deficits larger than 1000 calories/day to prevent muscle loss and metabolic adaptation.

Understanding TDEE

By Sanjeev Nair · Published January 2025

Weight management is simple math: Calories In vs. Calories Out. TDEE is the "Calories Out" part of that equation. Learn how to master it.

What is TDEE?

Total Daily Energy Expenditure (TDEE) is an estimation of how many calories you burn each day when exercise is taken into account. It is calculated by first figuring out your Basal Metabolic Rate (BMR), then multiplying that value by an activity multiplier.

The Components of TDEE

BMR (Basal Metabolic Rate): The energy your body needs to function at rest (breathing, organs). This makes up ~60-70% of your TDEE.
TEF (Thermic Effect of Food): The energy used to digest and process food (~10%).
EAT (Exercise Activity Thermogenesis): Planned exercise.
NEAT (Non-Exercise Activity Thermogenesis): Energy spent during daily movement (walking, fidgeting, working).

How to Use Your TDEE

Once you know your TDEE, you can adjust your calorie intake based on your goal:

Maintenance: Eat your TDEE calories.
Fat Loss: Eat ~500 calories below your TDEE.
Muscle Gain: Eat ~300-500 calories above your TDEE.

Want to find your exact number?

Calculate Your TDEE →

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4. Adjusting Calorie Intake for Goals

Once you calculate your daily energy expenditure (TDEE), you can adjust your calorie targets to meet your specific health goals:

Weight Loss (Deficit): Subtract 300 to 500 calories from your TDEE. This creates a sustainable energy deficit, encouraging your body to burn fat without reducing muscle mass or slowing your metabolism.
Muscle Gain (Surplus): Add 200 to 300 calories to your TDEE, combined with resistance training. This provides the extra energy required for muscle synthesis while minimizing fat gain.
Maintenance: Eat at your TDEE level. Monitor your weight weekly and adjust calorie targets if your weight fluctuates.

5. Component Breakdown

TDEE Component	Share of Energy Expenditure	Description
Basal Metabolic Rate (BMR)	60% to 70%	Energy required to keep you alive at rest
Non-Exercise Activity (NEAT)	15% to 30%	Energy spent on everyday movement (walking, typing)
Thermic Effect of Food (TEF)	10%	Energy used to digest and process meals

4. Adjusting Calorie Intake for Goals

Once you calculate your daily energy expenditure (TDEE), you can adjust your calorie targets to meet your specific health goals:

Weight Loss (Deficit): Subtract 300 to 500 calories from your TDEE. This creates a sustainable energy deficit, encouraging your body to burn fat without reducing muscle mass or slowing your metabolism.
Muscle Gain (Surplus): Add 200 to 300 calories to your TDEE, combined with resistance training. This provides the extra energy required for muscle synthesis while minimizing fat gain.
Maintenance: Eat at your TDEE level. Monitor your weight weekly and adjust calorie targets if your weight fluctuates.

5. Component Breakdown

TDEE Component	Share of Energy Expenditure	Description
Basal Metabolic Rate (BMR)	60% to 70%	Energy required to keep you alive at rest
Non-Exercise Activity (NEAT)	15% to 30%	Energy spent on everyday movement (walking, typing)
Thermic Effect of Food (TEF)	10%	Energy used to digest and process meals