Mifflin-St Jeor Equation:
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Total Daily Energy Expenditure (TDEE) represents the total number of calories your body burns in a day, including basal metabolic rate (BMR) and calories burned through physical activity. Understanding your TDEE is essential for effective weight loss planning.
The calculator uses the Mifflin-St Jeor equation:
Where:
Explanation: The equation first calculates your Basal Metabolic Rate (BMR), then multiplies it by your activity factor to determine your total daily energy needs.
Details: Knowing your TDEE helps create a calorie deficit for weight loss. A deficit of 500-1000 calories per day typically results in safe and sustainable weight loss of 0.5-1 kg per week.
Tips: Enter your current weight in kg, height in cm, age in years, and select your activity level based on your typical weekly exercise routine. All values must be valid positive numbers.
Q1: Why use Mifflin-St Jeor equation?
A: The Mifflin-St Jeor equation is considered one of the most accurate formulas for calculating BMR and is widely used in clinical settings.
Q2: How accurate is this calculator?
A: While the calculator provides a good estimate, individual variations in metabolism may affect actual TDEE. It's best used as a starting point.
Q3: What calorie deficit should I aim for?
A: For sustainable weight loss, aim for a 500-750 calorie deficit per day, which should result in 0.5-0.75 kg weight loss per week.
Q4: Should I adjust my TDEE as I lose weight?
A: Yes, as you lose weight, your BMR decreases. Recalculate your TDEE every 4-6 weeks or after significant weight changes.
Q5: Can this calculator be used for weight gain?
A: Yes, simply add 250-500 calories to your TDEE for gradual weight gain of 0.25-0.5 kg per week.