Health Calc TDEE Calculator
'/%3E%3Ccircle cx='48' cy='39' r='19' fill='%23f2c9a5'/%3E%3Cpath d='M27 35c3-16 39-17 42 2-8-8-27-9-42-2z' fill='%23374151'/%3E%3Cpath d='M21 86c5-24 49-28 56 0z' fill='%232563eb'/%3E%3Ccircle cx='41' cy='41' r='2' fill='%23111827'/%3E%3Ccircle cx='55' cy='41' r='2' fill='%23111827'/%3E%3Cpath d='M42 52c4 3 9 3 13 0' stroke='%2392400e' stroke-width='3' fill='none' stroke-linecap='round'/%3E%3C/svg%3E)
Reviewed by Calculator Editorial Team
Total Daily Energy Expenditure (TDEE) is the total number of calories your body burns in a day, including both Basal Metabolic Rate (BMR) and the calories burned through physical activity. This calculator helps you determine your personalized TDEE based on your age, weight, height, gender, and activity level.
What is TDEE?
TDEE represents the total calories your body needs each day to maintain your current weight. It's calculated by adding your BMR (the calories burned at rest) to the calories burned through physical activity. Understanding your TDEE is essential for weight management, fitness goals, and nutrition planning.
Key Points About TDEE
- TDEE = BMR + Activity Level Calories
- Used to determine calorie needs for weight maintenance, loss, or gain
- Helps personalize nutrition and exercise plans
- Commonly used by athletes, dieters, and fitness enthusiasts
How to Use This Calculator
- Enter your age in years
- Select your gender (male or female)
- Enter your weight in pounds or kilograms
- Enter your height in inches or centimeters
- Select your activity level from the dropdown menu
- Click "Calculate" to get your TDEE
- Review your results and interpretation
Activity Level Multipliers
| Activity Level | Multiplier |
|---|---|
| Sedentary (little or no exercise) | 1.2 |
| Lightly active (light exercise 1-3 days/week) | 1.375 |
| Moderately active (moderate exercise 3-5 days/week) | 1.55 |
| Very active (hard exercise 6-7 days/week) | 1.725 |
| Extra active (very hard exercise or physical job) | 1.9 |
Formula Used
The calculator uses the Mifflin-St Jeor equation to calculate BMR, then applies the activity level multiplier to determine TDEE:
BMR Calculation (Mifflin-St Jeor Equation)
For men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5
For women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161
TDEE Calculation
TDEE = BMR × Activity Level Multiplier
This formula provides a more accurate estimate of calorie needs compared to other equations, especially for individuals with different body compositions.
Worked Example
Let's calculate the TDEE for a 30-year-old woman who weighs 150 pounds (68 kg), is 5'5" (165 cm) tall, and has a moderately active lifestyle.
- Convert weight to kg: 150 lbs × 0.453592 = 68 kg
- Calculate BMR: (10 × 68) + (6.25 × 165) - (5 × 30) - 161 = 680 + 1031.25 - 150 - 161 = 1400.25 kcal/day
- Apply activity multiplier (1.55 for moderately active): 1400.25 × 1.55 = 2170.38 kcal/day
The calculated TDEE for this individual is approximately 2170 calories per day.
Interpreting Your Results
Your TDEE result provides several important insights:
- Maintenance calories: The number of calories you need to consume daily to maintain your current weight
- Weight loss: To lose weight, consume 200-500 calories fewer than your TDEE
- Weight gain: To gain weight, consume 200-500 calories more than your TDEE
- Macronutrient distribution: Use your TDEE to plan protein, carbs, and fat intake
Important Considerations
- TDEE estimates are general guidelines - individual results may vary
- Muscle mass affects calorie needs more than fat mass
- Hormonal factors and medical conditions can influence results
- Consult a healthcare professional for personalized advice
FAQ
What is the difference between BMR and TDEE?
BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic functions at rest. TDEE (Total Daily Energy Expenditure) includes BMR plus calories burned through physical activity.
How accurate is this calculator?
This calculator provides a good estimate based on standard formulas. Individual results may vary due to factors like muscle mass, hormonal differences, and medical conditions.
Can I use this for weight loss?
Yes, your TDEE helps determine how many calories you need to consume to maintain, lose, or gain weight. For weight loss, aim for 200-500 calories below your TDEE.
What if I'm pregnant or breastfeeding?
Pregnant and breastfeeding women have increased calorie needs. This calculator provides a general estimate, but consult a healthcare professional for personalized advice.
How often should I recalculate my TDEE?
Recalculate your TDEE when you have significant changes in weight, height, age, or activity level. Generally, it's good to review your TDEE every 3-6 months.