Calculate your Total Daily Energy Expenditure with expert guidance
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TDEE (Total Daily Energy Expenditure) is the total number of calories you burn in a day. It includes everything: breathing, digestion, walking, exercise, and even fidgeting.
Your TDEE is calculated by taking your Basal Metabolic Rate (BMR)—the calories your body burns at rest just to keep you alive—and multiplying it by an activity factor that accounts for your daily movement and exercise.
The beauty of TDEE is its simplicity: eat more than your TDEE to gain weight, eat less to lose weight, or eat around your TDEE to maintain.
TDEE tells you how many calories to eat—but not what to eat. Use our Macro Calculator to break down your calories into protein, carbs, and fats. For muscle building or fat loss, also check your daily protein needs.
To lose weight, you need to eat fewer calories than your TDEE—this creates a calorie deficit that forces your body to burn stored fat for energy.
A deficit of 500 calories per day typically results in about 1 pound (0.45 kg) of fat loss per week. This is considered a sustainable, healthy rate that minimizes muscle loss and metabolic adaptation.
| Deficit Size | Weekly Loss | Best For |
|---|---|---|
| 250 kcal | 0.5 lb/week | Slow, sustainable fat loss with minimal muscle loss |
| 500 kcal | 1 lb/week | Standard fat loss rate (recommended for most people) |
| 750 kcal | 1.5 lb/week | Aggressive cut (only for those with more fat to lose) |
| 1000 kcal | 2 lb/week | Very aggressive (risk of muscle loss, not recommended) |
These three terms are often confused. Here's what each one means and when to use it.
| Metric | What It Measures | Typical Range | Use Case |
|---|---|---|---|
| BMR Basal Metabolic Rate |
Calories burned at complete rest (like if you stayed in bed all day) | 1,200-2,000 kcal | Scientific baseline, minimum survival calories |
| RMR Resting Metabolic Rate |
Calories burned at rest including digestion and minor movement | 1,300-2,200 kcal | Medical/clinical settings, slightly higher than BMR |
| TDEE Total Daily Energy Expenditure |
Total calories burned per day including all activity | 1,600-3,500 kcal | Setting calorie targets for weight goals |
Bottom line: For setting calorie goals, always use TDEE. BMR and RMR are useful for understanding your metabolism, but TDEE is what actually determines whether you'll lose, gain, or maintain weight. For a more complete picture of your body composition, combine your TDEE with your body fat percentage.
Our calculator uses the Mifflin-St Jeor equation, widely considered the most accurate formula for estimating BMR.
| Activity Level | Multiplier | Description |
|---|---|---|
| Sedentary | 1.2 | Little to no exercise, desk job |
| Light | 1.375 | Light exercise 1-3 days/week |
| Moderate | 1.55 | Moderate exercise 3-5 days/week |
| Very Active | 1.725 | Hard exercise 6-7 days/week |
| Extremely Active | 1.9 | Very hard exercise or physical job |
Here are three example calculations showing how TDEE varies based on different profiles and goals:
Profile: Office worker, female, 30 years old
Stats: 65 kg, 165 cm, sedentary activity
BMR: 1,400 kcal
TDEE: 1,680 kcal (1,400 × 1.2)
Goal Calories: 1,180 kcal/day
Profile: Gym-goer, male, 35 years old
Stats: 80 kg, 178 cm, moderate activity
BMR: 1,785 kcal
TDEE: 2,767 kcal (1,785 × 1.55)
Goal Calories: 2,767 kcal/day
Profile: Athlete, male, 25 years old
Stats: 75 kg, 180 cm, very active
BMR: 1,765 kcal
TDEE: 3,045 kcal (1,765 × 1.725)
Goal Calories: 3,345 kcal/day
TDEE (Total Daily Energy Expenditure) is the total calories you burn per day, including your resting metabolism (BMR) plus all physical activity. It's crucial because it determines your calorie target: eat less than your TDEE to lose weight, more to gain weight, or match it to maintain.
This calculator uses the Mifflin-St Jeor equation, which is the most accurate formula available for estimating BMR in healthy adults. However, your actual TDEE may vary by 10-15% due to individual metabolic differences. Use this as a starting point, then adjust based on your real-world results over 2-4 weeks.
BMR (Basal Metabolic Rate) is the calories your body burns at complete rest just to stay alive—breathing, pumping blood, cell repair, etc. TDEE is your BMR multiplied by an activity factor to account for all movement and exercise. TDEE is always higher than BMR.
To lose weight, eat below your TDEE to create a calorie deficit. A deficit of 500 kcal/day typically results in ~1 lb of fat loss per week. Start with a 300-500 kcal deficit, track your weight weekly, and prioritize protein (1.6-2.2g per kg) to preserve muscle.
To build muscle, eat above your TDEE to create a calorie surplus. A modest surplus of 200-300 kcal/day is ideal for lean muscle growth while minimizing fat gain. Combine this with progressive resistance training and adequate protein intake.
Recalculate your TDEE every 10-15 lbs of weight change, or every 4-6 weeks if you're making progress. As you lose or gain weight, your BMR changes, which affects your TDEE.
Several reasons: (1) You may be underestimating calories—most people undercount by 20-50%. Track everything including oils, sauces, and drinks. (2) Your TDEE estimate may be too high—try reducing by 200 kcal. (3) Water retention can mask fat loss for 2-4 weeks. (4) You may be overestimating activity level. Give it 3-4 weeks of consistent tracking before adjusting.
Generally no, or only partially (25-50%). Fitness trackers and exercise machines overestimate calories burned by 20-50%. If your activity level selection already accounts for exercise (like "Moderate" for 3-5 days/week), those calories are already included in your TDEE.
Never eat below your BMR for extended periods. For most adults, this means no less than 1,200 kcal for women or 1,500 kcal for men. Extremely low calories lead to muscle loss, metabolic adaptation, nutrient deficiencies, and hormonal issues. A moderate deficit (500 kcal below TDEE) is more sustainable and effective long-term.
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