What Is My Resting Calorie Burn Calculator

Mifflin-St Jeor BMR Equation:

\[ BMR = 10 \times weight_{kg} + 6.25 \times height_{cm} - 5 \times age + 5 \text{ (men)} \]

Weight:

Height:

Age:

years

Gender:

Basal Metabolic Rate (BMR):

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1. What Is Resting Calorie Burn?

Resting calorie burn, also known as Basal Metabolic Rate (BMR), is the number of calories your body needs to perform basic life-sustaining functions while at complete rest. This includes breathing, circulation, cell production, and other essential bodily processes.

2. How Does The Calculator Work?

The calculator uses the Mifflin-St Jeor equation:

\[ BMR = 10 \times weight_{kg} + 6.25 \times height_{cm} - 5 \times age + 5 \text{ (men)} \] \[ BMR = 10 \times weight_{kg} + 6.25 \times height_{cm} - 5 \times age - 161 \text{ (women)} \]

Where:

\( weight_{kg} \) — Body weight in kilograms
\( height_{cm} \) — Height in centimeters
\( age \) — Age in years
\( +5 \) — Constant for males
\( -161 \) — Constant for females

Explanation: This equation is considered the most accurate for estimating BMR in healthy individuals and accounts for differences in metabolic rates between genders.

3. Importance Of BMR Calculation

Details: Knowing your BMR is essential for weight management, creating effective diet plans, and understanding your body's energy needs. It serves as the foundation for calculating Total Daily Energy Expenditure (TDEE).

4. Using The Calculator

Tips: Enter your weight in kilograms, height in centimeters, age in years, and select your gender. For accurate results, use precise measurements and fasted morning weights when possible.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between BMR and RMR?
A: BMR (Basal Metabolic Rate) measures calories burned at complete rest in a fasted state, while RMR (Resting Metabolic Rate) is measured under less strict conditions and is typically slightly higher.

Q2: How accurate is the Mifflin-St Jeor equation?
A: It's approximately 90% accurate for most healthy adults and is considered the gold standard for BMR estimation in clinical settings.

Q3: What factors affect BMR?
A: Age, gender, body composition, genetics, thyroid function, and environmental temperature can all influence your metabolic rate.

Q4: How can I increase my BMR?
A: Building muscle through strength training, staying hydrated, getting adequate sleep, and eating enough protein can help boost your metabolic rate.

Q5: Is BMR the same as calories needed for weight loss?
A: No, BMR only accounts for resting calories. Total daily needs include physical activity. For weight loss, create a calorie deficit below your Total Daily Energy Expenditure (TDEE).