1. What is Daily Calorie Calculation?

Daily calorie calculation estimates the number of calories your body needs each day to maintain your current weight, based on your basal metabolic rate (BMR) and physical activity level (PAL).

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( \text{BMR} \) — Basal Metabolic Rate (calories burned at rest)
• \( \text{PAL} \) — Physical Activity Level multiplier

Explanation: BMR represents the calories your body needs for basic functions, while PAL accounts for your daily activity level.

3. Importance of Daily Calorie Calculation

Details: Knowing your daily calorie needs is essential for weight management, whether your goal is to lose, maintain, or gain weight. It provides a scientific basis for creating appropriate meal plans.

4. Using the Calculator

Tips: Enter your BMR value (calculated separately) and select your appropriate activity level from the dropdown menu. All values must be valid (BMR > 0).

5. Frequently Asked Questions (FAQ)

Q1: How do I calculate my BMR?
A: BMR can be calculated using formulas like Mifflin-St Jeor or Harris-Benedict, which consider age, gender, height, and weight.

Q2: What PAL value should I choose?
A: Select based on your typical daily activity: Sedentary (office job), Lightly Active (light exercise 1-3 days/week), Moderately Active (moderate exercise 3-5 days/week), Very Active (hard exercise 6-7 days/week), or Extra Active (very hard exercise and physical job).

Q3: Is this calculation accurate for everyone?
A: While it provides a good estimate, individual variations in metabolism, body composition, and other factors may affect actual calorie needs.

Q4: Should I adjust my calories for weight loss?
A: For weight loss, typically reduce your maintenance calories by 500-1000 calories per day to lose 1-2 pounds per week.

Q5: How often should I recalculate my calorie needs?
A: Recalculate when your weight changes significantly, your activity level changes, or every few months to account for metabolic adaptations.