TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) to discover your daily maintenance calories, crucial for managing your weight effectively.
Discover your Total Daily Energy Expenditure (TDEE) — the exact number of calories your body burns in a day. Our calculator uses scientifically validated formulas to provide a personalized estimate, empowering you to tailor your nutrition for weight loss, maintenance, or muscle gain. Take control of your fitness journey by understanding your body's unique energy needs.
Enter Your Details
Provide your stats to get an accurate TDEE estimate.
What is a TDEE Calculator?
A Total Daily Energy Expenditure (TDEE) Calculator is a foundational nutritional science tool that calculates the total number of calories your body burns over a complete 24-hour period. While most people are familiar with baseline metabolic rates, your actual daily energy expenditure is composed of four distinct metabolic components: your Basal Metabolic Rate (BMR), the Thermic Effect of Food (TEF), Non-Exercise Activity Thermogenesis (NEAT), and Exercise Activity Thermogenesis (EAT).
Knowing your exact TDEE eliminates the guesswork from personal health and fitness. By discovering your true daily caloric maintenance number, you gain the precise baseline required to structure a sustainable fat loss caloric deficit, a muscle-building caloric surplus, or a steady long-term weight maintenance regimen.
How it Works / Formula
Our calculator utilizes the scientifically validated Mifflin-St Jeor Equation—recognized by the Academy of Nutrition and Dietetics as the most accurate standard for the general adult population. The calculation proceeds in two distinct phases: first determining your Basal Metabolic Rate (BMR), and then multiplying that figure by an empirical Physical Activity Level (PAL) coefficient.
Mifflin-St Jeor BMR Equation
Men: BMR = (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) + 5
Women: BMR = (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) – 161
Activity Multipliers (PAL):
- Sedentary (Desk Job, little movement): BMR × 1.2
- Light Activity (1–2 workouts/week): BMR × 1.375
- Moderate Activity (3–5 workouts/week): BMR × 1.55
- Heavy Activity (6–7 heavy workouts/week): BMR × 1.725
How to Use It (Steps)
- Step 1: Enter Biological Sex & Age: Hormonal differences and muscle mass distribution affect basal expenditure, while metabolic rate decreases slightly with age.
- Step 2: Enter Body Weight and Height: Input your morning barefoot height and scale weight in either Metric (kg/cm) or Imperial (lbs/inches).
- Step 3: Select Realistic Activity Level: Be conservative. If you sit at an office desk for 8 hours and exercise moderately three times a week, select "Light" or "Moderate" rather than "Very Active."
- Step 4: Press "Calculate Calories": Review your daily maintenance calories, along with tailored calorie targets for mild fat loss (-250 kcal), standard fat loss (-500 kcal), and muscle gain (+300 kcal).
2 Solved Real-Life Examples with Numbers
Example 1: Male Office Worker Seeking Fat Loss
Profile: Marcus, 32 years old, 82 kg, 180 cm tall, works a desk job but lifts weights 3 times a week (Moderate Activity = 1.55 multiplier).
BMR: (10 × 82) + (6.25 × 180) – (5 × 32) + 5 = 820 + 1125 – 160 + 5 = 1,790 kcal
TDEE: 1,790 × 1.55 = 2,775 kcal/day
Fat Loss Target (-500 kcal): 2,275 kcal/day
Outcome: Marcus consumes 2,275 calories daily to lose approximately 0.5 kg (1 lb) of fat per week sustainably while preserving lean muscle mass.
Example 2: Female Professional Maintaining Weight
Profile: Elena, 27 years old, 62 kg, 166 cm tall, walks daily and attends yoga twice weekly (Light Activity = 1.375 multiplier).
BMR: (10 × 62) + (6.25 × 166) – (5 × 27) – 161 = 620 + 1037.5 – 135 – 161 = 1,361.5 kcal
TDEE: 1,361.5 × 1.375 = 1,872 kcal/day
Maintenance Target: 1,870 kcal/day
Outcome: By consuming approximately 1,870 calories per day, Elena maintains stable body weight and sustained daily cognitive energy.
Common Mistakes When Using TDEE
- Overestimating Daily Physical Activity: Exercising for 45 minutes does not offset 9 hours of continuous sedentary desk sitting. Selecting an excessively high multiplier leads to calorie targets that stall weight loss.
- "Eating Back" Exercise Calories: Fitness watches and gym machines notoriously overestimate calorie burn by 30% to 50%. Your TDEE activity multiplier already accounts for workout energy expenditure.
- Ignoring Liquid Calories and Cooking Oils: A single tablespoon of olive oil contains 120 calories, and specialty coffees can add 300+ unaccounted calories, wiping out a 500-calorie deficit.
- Failing to Recalculate After Weight Loss: As your body mass drops, your BMR decreases because a smaller body requires less energy to operate. Recalculate your TDEE every 4 to 5 kilograms of weight change.
- Imposing Severe Starvation Deficits: Slashing calories by 1,000+ kcal triggers adaptive thermogenesis, lethargy, muscle catabolism, and rebound binge eating. Aim for a moderate 300–500 calorie deficit.
Daily Caloric Expenditure Benchmark Table Across Activity Levels
The benchmark reference table below demonstrates estimated BMR and TDEE maintenance requirements across 5 standardized physical activity tiers for adult men (75 kg, 178 cm, age 30) and adult women (62 kg, 165 cm, age 30).
| Activity Classification | Multiplier (PAL) | Weekly Exercise Volume | Men TDEE (kcal/day) | Women TDEE (kcal/day) | Fat Loss Target (-500 kcal) |
|---|---|---|---|---|---|
| Basal Metabolic Rate (BMR) | 1.000 | Zero movement / bed rest | 1,718 kcal | 1,340 kcal | N/A (Below BMR) |
| Sedentary (Desk Job) | 1.200 | < 3,000 steps, no structured exercise | 2,062 kcal | 1,608 kcal | 1,562 / 1,200 kcal |
| Lightly Active (Walking) | 1.375 | 1 to 2 light workouts, 5k steps/day | 2,362 kcal | 1,843 kcal | 1,862 / 1,343 kcal |
| Lightly Active (Gym) | 1.425 | 2 to 3 weightlifting sessions/week | 2,448 kcal | 1,910 kcal | 1,948 / 1,410 kcal |
| Moderately Active (Recreational) | 1.550 | 3 to 5 moderate workouts, 8k steps | 2,663 kcal | 2,077 kcal | 2,163 / 1,577 kcal |
| Moderately Active (CrossFit / HIIT) | 1.625 | 4 to 5 high-intensity conditioning days | 2,792 kcal | 2,178 kcal | 2,292 / 1,678 kcal |
| Very Active (Heavy Training) | 1.725 | 6 to 7 intense workouts/week | 2,964 kcal | 2,312 kcal | 2,464 / 1,812 kcal |
| Very Active (Active Occupation) | 1.800 | Construction / trades + training | 3,092 kcal | 2,412 kcal | 2,592 / 1,912 kcal |
| Extra Active (Endurance Athlete) | 1.900 | Marathon / triathlon 2x daily training | 3,264 kcal | 2,546 kcal | 2,764 / 2,046 kcal |
| Extreme / Elite Professional | 2.000 | Competitive athletics > 3 hours daily | 3,436 kcal | 2,680 kcal | 2,936 / 2,180 kcal |
Frequently Asked Questions (FAQs)
Frequently Asked Questions
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