TDEE Calculation Formula:
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TDEE (Total Daily Energy Expenditure) represents the total number of calories your body burns in a day, including basal metabolic rate and physical activity. A calorie deficit occurs when you consume fewer calories than your TDEE, which is essential for weight loss.
The calculator uses the following formulas:
Where:
Explanation: The formula calculates your basal metabolic rate adjusted for activity level to determine total daily energy expenditure, then subtracts your calorie intake to find the deficit.
Details: Understanding your TDEE is crucial for effective weight management. Creating an appropriate calorie deficit helps achieve sustainable weight loss while maintaining energy levels and preserving muscle mass.
Tips: Enter your weight in kg, height in cm, age in years, select your activity level, and input your daily calorie intake. All values must be valid positive numbers.
Q1: What is a safe calorie deficit for weight loss?
A: A deficit of 500-1000 calories per day is generally safe and sustainable, leading to 0.5-1 kg weight loss per week.
Q2: How accurate is the TDEE calculation?
A: While the formula provides a good estimate, individual variations in metabolism may affect accuracy. It's best used as a starting point.
Q3: Should I adjust my activity factor over time?
A: Yes, as your activity levels change or as you lose weight, you should recalculate your TDEE to maintain an appropriate deficit.
Q4: What if my deficit is too large?
A: Excessive deficits can lead to muscle loss, nutrient deficiencies, and metabolic adaptation. Aim for moderate deficits for sustainable results.
Q5: How often should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or after significant weight loss (5+ kg) to ensure your calorie targets remain accurate.