TDEE Calculator: Calculate Total Daily Energy Expenditure

TDEE represents the total number of calories a person burns in a day, taking into account their Basal Metabolic Rate (BMR) and physical activity. It’s an estimate of the total daily energy expenditure to maintain current weight.

TDEE Calculator



Calculation of TDEE:

TDEE is typically calculated by multiplying the BMR by an activity factor that represents the level of physical activity. The commonly used Harris-Benedict equation is often employed to calculate the BMR, and then this value is multiplied by an activity factor.

Harris-Benedict Equation:

The Harris-Benedict equation is used to estimate the BMR based on gender, age, weight, and height. There are separate formulas for men and women:

  • For Men:BMR=88.362+(13.397×weight in kg)+(4.799×height in cm)−(5.677×age)BMR=88.362+(13.397×weight in kg)+(4.799×height in cm)−(5.677×age)
  • For Women:BMR=447.593+(9.247×weight in kg)+(3.098×height in cm)−(4.330×age)BMR=447.593+(9.247×weight in kg)+(3.098×height in cm)−(4.330×age)

Activity Multipliers:

After calculating the BMR, it is then multiplied by an activity factor to estimate TDEE. Common activity multipliers include:

  • Sedentary (little or no exercise): 1.2
  • Lightly Active (light exercise/sports 1-3 days/week): 1.375
  • Moderately Active (moderate exercise/sports 3-5 days/week): 1.55
  • Very Active (hard exercise/sports 6-7 days a week): 1.725
  • Extra Active (very hard exercise/sports & physical job or 2x training): 1.9

TDEE Calculation:

TDEE = BMR × Activity Multiplier

The provided TDEE calculator uses the Harris-Benedict equation to calculate the BMR based on gender, weight, height, and age. It then multiplies the BMR by the selected activity factor to estimate the TDEE.

The goal is to provide an approximation of the total daily calorie needs, taking into account both basal metabolic rate and physical activity.

Importance to Calculate your TDEE

Knowing your Total Daily Energy Expenditure (TDEE) is important for several reasons, especially if you are managing your weight, pursuing fitness goals, or trying to maintain a healthy lifestyle. Here are some key reasons why understanding your TDEE is beneficial:

Weight Management:

Weight Loss: If your goal is to lose weight, understanding your TDEE helps you create a calorie deficit by consuming fewer calories than your TDEE. This is fundamental for weight loss.

Weight Gain: For those looking to gain weight, knowing your TDEE allows you to consume a calorie surplus, which is essential for muscle building and overall weight gain.

Calorie Intake Guidance:

Knowing your TDEE provides a baseline for determining your daily calorie intake. It helps you tailor your diet to your specific energy needs, preventing overeating or undereating.

Fitness Goal Setting:

Whether your goal is to maintain, lose, or gain weight, understanding your TDEE enables you to set realistic and achievable fitness goals.

Nutrient Distribution:

Your TDEE calculation gives you an idea of how many calories you need daily. From there, you can determine the appropriate distribution of macronutrients (proteins, fats, and carbohydrates) to meet your nutritional needs.

Preventing Metabolic Adaptation:

Constantly eating too few calories below your TDEE may lead to metabolic adaptation, where your body adjusts to lower energy intake. Knowing your TDEE allows you to manage your caloric intake more effectively.

Performance Optimization:

Athletes and individuals engaged in regular physical activity can use TDEE to optimize their energy levels. Consuming the right amount of calories ensures that you have enough energy for workouts and recovery.

Health Maintenance:

Maintaining a balanced TDEE supports overall health and well-being. Consistently meeting your energy needs helps prevent nutrient deficiencies and promotes a healthy metabolism.

Personalized Approach:

TDEE calculations are individualized, taking into account factors such as age, gender, weight, height, and activity level. This personalized approach provides a more accurate reflection of your daily energy requirements.

By understanding your TDEE, you gain valuable insights into your body’s energy needs, allowing you to make informed decisions about your diet, exercise, and overall health. It serves as a foundation for achieving and maintaining a healthy weight and lifestyle.