Body Metabolic Rate Calculator Bmr Calculator

BMR Equation:

\[ BMR = 10 \times Weight + 6.25 \times Height - 5 \times Age + \text{Constant} \]

Weight:

Height:

Age:

years

Gender:

Basal Metabolic Rate (BMR):

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1. What is the BMR Equation?

The BMR (Basal Metabolic Rate) equation estimates the number of calories your body needs to perform basic life-sustaining functions at rest. It represents the minimum energy required to maintain vital functions such as breathing, circulation, and cell production.

2. How Does the Calculator Work?

The calculator uses the BMR equation:

\[ BMR = 10 \times Weight + 6.25 \times Height - 5 \times Age + \text{Constant} \]

Where:

\( Weight \) — Body weight in kilograms (kg)
\( Height \) — Height in centimeters (cm)
\( Age \) — Age in years
\( Constant \) — +5 for men, -161 for women

Explanation: The equation calculates the basal metabolic rate based on body size, age, and gender, providing an estimate of daily calorie needs at complete rest.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for weight management, diet planning, and understanding your body's energy requirements. It serves as the foundation for calculating total daily energy expenditure when combined with activity level.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What factors affect BMR?
A: BMR is influenced by body composition, age, gender, genetics, and hormonal factors. Muscle mass increases BMR while fat decreases it.

Q2: How accurate is the BMR calculation?
A: This equation provides a good estimate for most people, but individual variations exist. For precise measurements, clinical testing is recommended.

Q3: How often should I recalculate my BMR?
A: Recalculate when there are significant changes in weight, body composition, or age (every few months or after major lifestyle changes).

Q4: Can BMR change over time?
A: Yes, BMR typically decreases with age due to loss of muscle mass and changes in hormonal balance.

Q5: How is BMR used in weight management?
A: BMR helps determine maintenance calories. To lose weight, consume fewer calories than your total daily energy expenditure; to gain weight, consume more.