1. What is the Calorie Maintenance Equation?

The calorie maintenance equation estimates the number of calories needed to maintain your current weight based on your basal metabolic rate (BMR) and activity level. It helps in weight management by providing a baseline for calorie intake.

2. How Does the Calculator Work?

The calculator uses the following equations:

Where:

• \( weight \) — Weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( activity\_factor \) — Multiplier based on activity level (1.2-1.9)

Explanation: The equation first calculates your basal metabolic rate (calories burned at rest), then adjusts for your activity level to estimate total daily energy expenditure.

3. Importance of Calorie Calculation

Details: Knowing your maintenance calories is essential for weight management. Consuming more than this amount leads to weight gain, while consuming less leads to weight loss.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, select gender and activity level. For accurate results, use morning measurements before eating or drinking.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: It provides a good estimate (±10%) for most people, but individual variations in metabolism may affect actual calorie needs.

Q2: Should I eat exactly my maintenance calories?
A: This is a starting point. Adjust based on your weight changes over 2-3 weeks - increase if losing weight, decrease if gaining.

Q3: Why does my maintenance calories decrease with age?
A: Metabolism naturally slows with age due to decreased muscle mass and hormonal changes.

Q4: How often should I recalculate?
A: Recalculate after significant weight changes (±5kg) or changes in activity level.

Q5: What if I'm very muscular or have high body fat?
A: The equation may be less accurate. Athletes may need more calories, while those with high body fat may need fewer.