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TDEE Equation:
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The Energy Expenditure Calculator Australia estimates Total Daily Energy Expenditure (TDEE) using the Basal Metabolic Rate (BMR) and Activity Factor (AF). It provides an accurate assessment of daily calorie needs based on individual metabolic rate and activity levels.
The calculator uses the TDEE equation:
Where:
Explanation: The equation multiplies your basal metabolic rate by an activity factor that represents your daily physical activity level to calculate total energy expenditure.
Details: Accurate TDEE estimation is crucial for weight management, nutrition planning, athletic performance optimization, and maintaining energy balance for overall health and wellness.
Tips: Enter your BMR in kcal/day and select your appropriate activity factor from the dropdown menu. All values must be valid (BMR > 0).
Q1: What is BMR and how is it different from TDEE?
A: BMR (Basal Metabolic Rate) represents the calories your body needs at complete rest, while TDEE (Total Daily Energy Expenditure) includes all daily activities and represents your total calorie needs.
Q2: How do I determine my activity factor?
A: Choose Sedentary (1.2) for little to 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 Extra Active (1.9) for very hard exercise and physical job.
Q3: Why is this calculator specific to Australia?
A: While the calculation principles are universal, this calculator is tailored with Australian measurement standards and activity level descriptions that align with Australian lifestyle patterns.
Q4: How often should I recalculate my TDEE?
A: You should recalculate your TDEE whenever your weight changes significantly, your activity level changes, or every 3-6 months to account for metabolic adaptations.
Q5: Can TDEE be used for weight loss or gain goals?
A: Yes, TDEE provides your maintenance calories. For weight loss, consume 250-500 calories less than your TDEE; for weight gain, consume 250-500 calories more than your TDEE.