What Is TDEE and Why Does It Matter?
Your Total Daily Energy Expenditure (TDEE) is the total number of calories your body burns in a 24-hour period. It's the foundation of any nutrition plan — whether your goal is losing fat, building muscle, or maintaining your current physique.
TDEE is calculated by combining your Basal Metabolic Rate (BMR) — the calories your body burns just to stay alive — with your activity level multiplier.
How to Calculate Your TDEE
The most accurate widely-used formula is the Mifflin-St Jeor equation:
Then multiply by your activity factor:
Use our TDEE Calculator to compute this instantly — just enter your stats and activity level.
Setting Your Macro Targets
Once you know your TDEE, you can set macronutrient targets:
For Fat Loss
For Muscle Gain
For Maintenance
Common Mistakes
1. Overestimating activity level — Most people with desk jobs are "Sedentary" or "Lightly Active," even if they work out 3x/week.
2. Not tracking accurately — A food scale is more accurate than eyeballing portions.
3. Expecting immediate results — Give any caloric target 2-3 weeks before adjusting. Weight fluctuates daily due to water retention.
Tools to Help
The key is consistency. Calculate your TDEE, set your macros, track your food for a few weeks, and adjust based on real-world results. No calculator is 100% accurate — they're starting points, not gospel.