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 your total calorie needs including physical activity.

2. How Does the Calculator Work?

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

Where:

• \( weight \) — Body 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 (BMR) and then adjusts for your activity level (TDEE).

3. Importance of Calorie 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 planning your diet.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, and select your typical activity level. For accurate results, measure your weight and height rather than estimating.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: The Mifflin-St Jeor equation is considered the most accurate BMR formula, with about 70% accuracy for most people.

Q2: Why is this specific to women?
A: Women typically have lower BMR than men due to differences in body composition. The equation accounts for this with a different constant.

Q3: How often should I recalculate?
A: Recalculate whenever your weight changes significantly (5+ kg) or your activity level changes substantially.

Q4: What if I'm pregnant or breastfeeding?
A: These calculations don't account for pregnancy or lactation needs. Consult a healthcare provider for nutritional guidance.

Q5: Can I use this for weight loss?
A: Yes, TDEE gives your maintenance calories. For weight loss, consume 300-500 kcal less than your TDEE daily for steady loss.