Mifflin-St Jeor Equation:
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The TDEE (Total Daily Energy Expenditure) Calculator estimates your daily calorie needs for weight gain using the Mifflin-St Jeor equation. It calculates your Basal Metabolic Rate (BMR) and adjusts for activity level to determine maintenance calories, then adds 500 calories for weight gain.
The calculator uses the Mifflin-St Jeor equation:
Where:
Explanation: The equation calculates your basal metabolic rate, then multiplies by activity level to estimate total daily energy expenditure. Adding 500 calories creates a surplus for weight gain.
Details: Accurate TDEE estimation is crucial for effective weight management. Understanding your maintenance calories helps create appropriate calorie surpluses for healthy weight gain while minimizing fat accumulation.
Tips: Enter weight in kg, height in cm, age in years, select gender and activity level. Use accurate measurements for best results. The +500 calorie surplus typically results in 0.5-1 kg weight gain per week.
Q1: Why use Mifflin-St Jeor instead of other equations?
A: Mifflin-St Jeor is considered one of the most accurate BMR equations for healthy adults and is widely used in clinical settings.
Q2: How accurate is the TDEE calculation?
A: The calculation provides a good estimate, but individual variations exist. Monitor your progress and adjust calories as needed based on actual weight changes.
Q3: Should I always add 500 calories for weight gain?
A: 500 calories is a general guideline. Individual needs may vary based on metabolism, training intensity, and weight gain goals.
Q4: How often should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or after significant weight changes (±5 kg) to maintain accuracy.
Q5: What if I'm not gaining weight with these calories?
A: Gradually increase calorie intake by 100-200 calories every 1-2 weeks until you achieve desired weight gain rate.