What Is TDEE?
Total Daily Energy Expenditure (TDEE) represents the total number of calories your body burns each day. It accounts for every process that requires energy — from breathing and digesting food to exercising and even fidgeting. Understanding your TDEE is the foundation of any effective nutrition plan, whether your goal is to lose weight, gain muscle, or maintain your current physique.
Your TDEE is calculated by first determining your Basal Metabolic Rate (BMR), which is the energy your body needs at complete rest, and then multiplying it by an activity factor that reflects your daily movement and exercise habits.
How to Use the TDEE Calculator
Using our free TDEE calculator is straightforward. Enter your age, gender, weight, and height, then select your activity level — from sedentary (little or no exercise) to extremely active (intense daily training). The calculator uses the Mifflin-St Jeor equation, widely regarded as the most accurate formula for estimating metabolic rate in healthy adults.
Once you have your TDEE, you can adjust your calorie intake based on your goals. To lose weight, eat below your TDEE. To gain weight or build muscle, eat above it. A moderate deficit or surplus of 300–500 calories per day is recommended for sustainable results.
Why TDEE Matters for Your Goals
Knowing your TDEE removes the guesswork from dieting. Instead of following generic meal plans, you can tailor your intake to your unique metabolism, body composition, and lifestyle. This personalised approach leads to better adherence, fewer plateaus, and more predictable progress over time.
TDEE is also not static — it changes as your weight, age, and activity habits shift. Recalculating every few weeks ensures your nutrition stays aligned with your body’s current needs. Pair your TDEE with our macro calculator to get a complete picture of how to distribute your calories across protein, carbohydrates, and fats.