TDEE Calculator
Calculate your Total Daily Energy Expenditure to know exactly how many calories you burn per day. Get targets for weight loss, maintenance, and muscle gain.
Your TDEE
2,633
calories/day · BMR: 1,699 · ×1.55
Cutting (−500)
2,133
cal/day
Maintenance
2,633
cal/day
Bulking (+500)
3,133
cal/day
How the TDEE Calculator Works
TDEE is calculated by first determining your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation, then multiplying it by an activity factor that accounts for your daily movement and exercise habits.
TDEE Formula
TDEE = BMR × Activity Multiplier BMR (Male) = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5
BMR (Female) = 10 × weight(kg) + 6.25 × height(cm) − 5 × age − 161
Multipliers: Sedentary (1.2), Light (1.375), Moderate (1.55), Active (1.725), Very Active (1.9)
Example Calculation
For a 30-year-old male, 80 kg, 178 cm, exercising 4 days/week:
- BMR = 10(80) + 6.25(178) − 5(30) + 5 = 1,767 cal
- Activity = Moderately Active (1.55)
- TDEE = 1,767 × 1.55 = 2,739 calories/day
Calorie Targets by Goal
| Goal | Calories | Adjustment |
|---|---|---|
| Aggressive Cut | 2,189 | −20% |
| Moderate Cut | 2,389 | −500 cal |
| Maintenance | 2,739 | — |
| Lean Bulk | 2,989 | +250 cal |
| Aggressive Bulk | 3,239 | +500 cal |
Tips for Accurate TDEE Tracking
- Be honest about your activity level — most people overestimate
- Track your weight for 2-3 weeks and adjust calories if weight isn't moving as expected
- NEAT (fidgeting, walking, standing) can account for 200-800 calories/day
- Recalculate after every 5-10 pounds of weight change
- Sleep deprivation can reduce TDEE by 5-20% through lower NEAT
Limitations
TDEE calculations provide useful starting estimates, but have inherent limitations:
- Activity level selection is subjective — most people overestimate their activity level
- Does not account for metabolic adaptation (your body reduces TDEE during prolonged diets)
- Non-exercise activity thermogenesis (NEAT) varies enormously between individuals (200-900 cal/day)
- Does not factor in muscle-to-fat ratio — two people at same weight can have very different TDEEs
- Thermic effect of food (TEF) is estimated at ~10% but varies by macronutrient composition (protein has higher TEF)
- Less reliable for individuals with thyroid disorders, PCOS, or hormonal imbalances
Common Mistakes
- Choosing "Very Active" when your job is sedentary (desk job + gym ≠ Very Active)
- Not recalculating after significant weight change (every 5-10 kg)
- Double-counting exercise (if using "Active" TDEE, don't add exercise calories separately)
- Using TDEE for cutting without a structured diet break every 8-12 weeks
- Ignoring adaptive thermogenesis — your body reduces TDEE by 5-15% during extended deficits
- Assuming TDEE is constant day-to-day (it fluctuates based on sleep, stress, temperature, menstrual cycle)
TDEE for Different Body Types
Somatotype (body type) influences how activity multipliers map to real expenditure. Ectomorphs (naturally lean, high NEAT tendency) often find the standard multipliers underestimate their actual TDEE by 5-10%, as they unconsciously move more and have higher sympathetic nervous system activity. Mesomorphs (muscular build, moderate metabolism) tend to align closest with the standard multipliers. Endomorphs (higher body fat tendency, lower NEAT) may find the multipliers overestimate by 5-10%, particularly at sedentary or lightly active levels. These are tendencies, not rules — use your body type as a hint for which direction to adjust after initial tracking.
Tracking Your Actual TDEE
The most accurate way to determine your personal TDEE is the adaptive spreadsheet method: weigh yourself daily (first thing in the morning, after bathroom), log all food intake honestly, and calculate your rolling average weight change over 3 weeks. If your average weight stayed flat, your average calorie intake equals your actual TDEE. If you lost 0.5 kg/week on 2,200 calories, your true TDEE is approximately 2,200 + 550 = 2,750. This empirical approach eliminates guesswork from activity multipliers and accounts for your personal genetics, NEAT patterns, and metabolic rate.
Alternative Metrics
- 7-day food diary + weight tracking (empirical TDEE measurement)
- Armband/wearable metabolic trackers (moderate accuracy, ±15%)
- Doubly-labeled water method (research gold standard for total energy expenditure)
- Heart rate-based estimation (better for exercise-specific expenditure)
References
- Mifflin-St Jeor Equation for Resting Energy Expenditure — National Institutes of Health/PubMed
- Physical Activity Fact Sheet — World Health Organization
- Dietary Guidelines for Americans 2020-2025 — USDA/HHS
- Physical Activity for a Healthy Weight — Centers for Disease Control and Prevention
Frequently Asked Questions
What is TDEE and how is it different from BMR?
TDEE (Total Daily Energy Expenditure) is the total calories your body burns in a day including all activities. BMR (Basal Metabolic Rate) is only the calories burned at complete rest. TDEE = BMR × Activity Multiplier. For example, if your BMR is 1,600 and you exercise moderately, your TDEE is about 1,600 × 1.55 = 2,480 calories.
What are the activity level multipliers?
The standard multipliers are: Sedentary (1.2) for desk jobs with no exercise, Lightly Active (1.375) for light exercise 1-3 days/week, Moderately Active (1.55) for moderate exercise 3-5 days/week, Very Active (1.725) for hard exercise 6-7 days/week, and Extremely Active (1.9) for athletes or very physical jobs.
How do I use TDEE for weight loss (cutting)?
To lose weight, eat below your TDEE. A deficit of 500 calories/day results in roughly 1 pound of fat loss per week. A moderate deficit (15-20% below TDEE) is sustainable and preserves muscle. For example, if your TDEE is 2,400, eating 1,900-2,040 calories creates a healthy deficit.
How do I use TDEE for muscle gain (bulking)?
To gain muscle, eat above your TDEE. A surplus of 250-500 calories/day supports muscle growth while minimizing fat gain. If your TDEE is 2,400, aim for 2,650-2,900 calories combined with resistance training. Protein intake should be 0.7-1g per pound of bodyweight.
How should I split my macros based on TDEE?
A common macro split for maintenance is 30% protein, 40% carbs, 30% fat. For cutting, increase protein to 35-40% to preserve muscle. For bulking, increase carbs to 45-50% for energy. Each gram of protein/carbs = 4 calories, each gram of fat = 9 calories. Adjust based on training demands and preferences.
How often should I recalculate my TDEE?
Recalculate every 4-6 weeks or whenever your weight changes by more than 5 pounds. As you lose weight, your TDEE decreases (less body mass to fuel). As you gain muscle, your TDEE may increase slightly. Activity level changes also require recalculation.
Why is my TDEE estimate different from what I actually need?
TDEE estimates can vary 10-15% from actual expenditure because the activity multiplier categories are broad. Two people classified as 'moderately active' might differ by 300-500 calories depending on job type, NEAT habits, and exercise intensity. Use the calculated TDEE as a starting point, then adjust based on 2-3 weeks of weight tracking.