Bmr Tdee Calculator Weight Loss Calories

TDEE Equation:

\[ TDEE = BMR \times activity\_factor \] \[ Calories = TDEE - 500 \]

Age:

years

Gender:

Weight:

Height:

Activity Level:

BMR (Basal Metabolic Rate):

TDEE (Total Daily Energy Expenditure):

Weight Loss Calories (500 cal deficit):

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1. What is BMR and TDEE?

BMR (Basal Metabolic Rate) is the number of calories your body needs at complete rest to maintain basic functions. TDEE (Total Daily Energy Expenditure) is your total calorie needs including physical activity.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation for BMR:

\[ BMR_{male} = (10 \times weight) + (6.25 \times height) - (5 \times age) + 5 \] \[ BMR_{female} = (10 \times weight) + (6.25 \times height) - (5 \times age) - 161 \]

Then calculates TDEE:

\[ TDEE = BMR \times activity\_factor \]

And weight loss calories:

\[ Calories = TDEE - 500 \]

3. Importance of BMR/TDEE Calculation

Details: Knowing your BMR and TDEE helps in weight management, whether your goal is weight loss, maintenance, or muscle gain.

4. Using the Calculator

Tips: Enter your age, gender, weight in kg, height in cm, and select your activity level. For accurate results, use your current weight and be honest about your activity level.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: The Mifflin-St Jeor equation is about 90% accurate for most people, but individual variations exist.

Q2: Why subtract 500 calories for weight loss?
A: A 500 calorie daily deficit typically results in about 1 pound (0.45 kg) of fat loss per week.

Q3: Should I eat below my BMR?
A: Generally no - eating below BMR can slow metabolism and cause nutrient deficiencies.

Q4: How often should I recalculate?
A: Recalculate every 10-15 pounds lost or if your activity level changes significantly.

Q5: What if I'm not losing weight at this calorie level?
A: You may need to adjust your calorie intake further or ensure you're tracking accurately.