1. What is the Daily Calories Calculation?

The daily calories calculation estimates the number of calories a woman needs to maintain her current weight based on her weight, height, age, and activity level. This is based on the Mifflin-St Jeor Equation, which is considered the most accurate for calculating basal metabolic rate (BMR) and total daily energy expenditure (TDEE).

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

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

Activity Factors:

• 1.2 - Sedentary (little or no exercise)
• 1.375 - Lightly active (light exercise 1-3 days/week)
• 1.55 - Moderately active (moderate exercise 3-5 days/week)
• 1.725 - Very active (hard exercise 6-7 days/week)
• 1.9 - Extra active (very hard exercise & physical job)

3. Importance of Calorie Calculation

Details: Knowing your daily calorie needs is essential for weight management, whether you want to maintain, lose, or gain weight. It provides a scientific basis for planning your diet and exercise regimen.

4. Using the Calculator

Tips: For accurate results, measure your weight and height precisely. Be honest about your activity level as overestimating can lead to inaccurate calorie estimates.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculator only for women?
A: Yes, this specific equation is designed for women. Men would use a different equation (without the -161 adjustment).

Q2: How accurate is this calculation?
A: It provides a good estimate for most women, but individual variations in metabolism may affect actual calorie needs.

Q3: Should I eat fewer calories to lose weight?
A: Generally, consuming 500 fewer calories per day than your TDEE will result in about 0.5kg weight loss per week.

Q4: Do I need to recalculate my calories often?
A: Yes, especially if your weight changes significantly or your activity level changes.

Q5: Can this be used during pregnancy?
A: No, pregnancy significantly alters calorie needs. Consult your healthcare provider for guidance during pregnancy.