1. What is the BMR Calculator?

The BMR (Basal Metabolic Rate) calculator estimates the number of calories your body needs to perform basic life-sustaining functions at rest. It provides an important baseline for determining daily caloric needs.

2. How Does the Calculator Work?

The calculator uses the BMR equation:

Where:

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

Explanation: This equation calculates the basal metabolic rate based on your body's basic energy requirements at complete rest.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for creating effective weight management plans, whether for weight loss, maintenance, or gain. It serves as the foundation for calculating total daily energy expenditure.

4. Using the Calculator

Tips: Enter weight in kilograms, height in centimeters, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: What is Basal Metabolic Rate (BMR)?
A: BMR is the number of calories your body needs to maintain basic physiological functions while at complete rest, including breathing, circulation, and cell production.

Q2: How accurate is this BMR calculation?
A: This formula provides a good estimate for most people, but individual variations in metabolism, body composition, and other factors can affect actual BMR.

Q3: Should I use BMR or TDEE for diet planning?
A: BMR represents your baseline metabolic rate. For diet planning, you should calculate your Total Daily Energy Expenditure (TDEE) by multiplying BMR by an activity factor.

Q4: Does muscle mass affect BMR?
A: Yes, muscle tissue burns more calories at rest than fat tissue. Individuals with higher muscle mass typically have a higher BMR.

Q5: How often should I recalculate my BMR?
A: You should recalculate your BMR whenever your weight changes significantly (5+ kg) or as you age, since metabolic rate typically decreases with age.