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 like breathing and circulation. TDEE (Total Daily Energy Expenditure) is the total number of calories you burn in a day, including physical activity.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor Equation for women:

Where:

• \( weight \) — Weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( activity\_factor \) — Multiplier based on activity level

Explanation: The equation estimates your body's calorie needs at rest and then adjusts for your activity level to estimate total daily calorie expenditure.

3. Importance of BMR and TDEE Calculation

Details: Knowing your BMR and TDEE helps with weight management - whether your goal is weight loss, maintenance, or gain. It provides a scientific basis for determining your daily calorie needs.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, and select your activity level. For accurate results, use your most recent measurements.

5. Frequently Asked Questions (FAQ)

Q1: Why is this equation specific to women?
A: Women typically have lower BMR than men due to differences in body composition, so the equation includes a gender-specific constant (-161).

Q2: How accurate is this calculator?
A: It provides a good estimate for most women, but individual variations in muscle mass, body fat percentage, and metabolism can affect actual values.

Q3: Should I eat my BMR or TDEE?
A: For weight maintenance, aim for your TDEE. For weight loss, consume fewer calories than your TDEE but never below your BMR for extended periods.

Q4: How often should I recalculate?
A: Recalculate whenever your weight changes significantly (5+ kg) or your activity level changes substantially.

Q5: Does this account for pregnancy?
A: No, this calculator is not suitable for pregnant or breastfeeding women who have different nutritional needs.