1. What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions at rest. It represents the minimum energy required to keep your body functioning, including breathing, circulation, and cell production.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation for women:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years

Explanation: This equation accounts for the fact that women typically have lower BMR than men due to differences in body composition.

3. Importance of BMR Calculation

Details: Knowing your BMR helps in weight management, creating personalized diet plans, and understanding your body's energy needs. It's the foundation for calculating total daily energy expenditure (TDEE).

4. Using the Calculator

Tips: For accurate results, measure your weight and height precisely. Use morning measurements before eating or exercising. The equation is valid for adults aged 18-80.

5. Frequently Asked Questions (FAQ)

Q1: How often should I recalculate my BMR?
A: Recalculate whenever your weight changes significantly (5+ kg) or at least every 6 months as your body composition changes.

Q2: Why is the equation different for women?
A: Women generally have higher body fat percentages and lower muscle mass than men, which affects metabolic rate.

Q3: What factors can affect BMR?
A: Muscle mass, body size, age, genetics, hormones, and environmental temperature can all influence BMR.

Q4: How accurate is this calculation?
A: It provides a good estimate (±10%) for most people, but individual variations exist. Laboratory tests are more precise.

Q5: Can I use this for weight loss planning?
A: Yes, but remember this is just your basal needs. You'll need to factor in activity level for total calorie needs.