1. What is the Daily Calorie Calculation?

The daily calorie calculation estimates how many calories a woman needs to maintain her current weight based on her basal metabolic rate (BMR) and activity level. It uses the Mifflin-St Jeor equation which is the most accurate for healthy individuals.

2. How Does the Calculator Work?

The calculator uses two equations:

Where:

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

Explanation: BMR represents calories needed at complete rest. The activity factor adjusts for daily movement and exercise.

3. Importance of Calorie Calculation

Details: Knowing your daily calorie needs helps with weight maintenance, weight loss (by creating a deficit), or weight gain (by creating a surplus). It's fundamental for nutrition planning.

4. Using the Calculator

Tips: Enter weight in kg, height in cm, and age in years. Select your typical activity level. For weight loss, consume 300-500 kcal less than calculated.

5. Frequently Asked Questions (FAQ)

Q1: Why is this specific to women?
A: Women generally have lower BMR than men due to typically higher body fat percentage and lower muscle mass.

Q2: How accurate is this calculation?
A: It's an estimate (±10% accuracy for most people). Individual variations in metabolism exist.

Q3: Should I eat fewer calories as I age?
A: Yes, BMR decreases about 1-2% per decade after age 20 due to muscle loss, so calorie needs decrease.

Q4: What if I'm pregnant or breastfeeding?
A: This calculator doesn't account for those conditions which increase calorie needs.

Q5: How often should I recalculate?
A: Recalculate after significant weight changes (±5kg) or activity level changes.