1. What is Daily Energy Requirement?

Daily Energy Requirement (DER) represents the total number of calories your body needs each day to maintain your current weight, taking into account your basal metabolic rate and physical activity level.

2. How Does the Calculator Work?

The calculator uses the DER formula:

Where:

• \( BMR \) — Basal Metabolic Rate (calories burned at rest)
• \( Activity Factor \) — Multiplier based on physical activity level

Activity Factors:

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

3. Importance of DER Calculation

Details: Knowing your daily energy requirement is essential for weight management, creating effective nutrition plans, and ensuring adequate energy intake for your activity level and goals.

4. Using the Calculator

Tips: Enter your BMR value in kcal/day and select your appropriate activity level from the dropdown menu. The calculator will compute your total daily energy requirement.

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 equations, which consider age, gender, height, and weight.

Q2: Should I use this for weight loss?
A: Yes, subtract 500-1000 calories from your DER for a safe weight loss of 0.5-1 kg per week.

Q3: How often should I recalculate my DER?
A: Recalculate whenever your weight, activity level, or goals change significantly.

Q4: Are there limitations to this calculation?
A: Individual variations in metabolism, muscle mass, and other factors can affect actual energy needs.

Q5: Can I use this for athletic training?
A: Yes, athletes should use appropriate activity factors and may need to adjust based on training intensity and duration.