Calculate Calories Burned At Rest

RMR Equation:

\[ RMR = 10 \times weight + 6.25 \times height - 5 \times age + (5 \text{ if male}) (-161 \text{ if female}) \]

Weight:

Height:

Age:

years

Gender:

Resting Metabolic Rate (RMR):

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1. What Is Resting Metabolic Rate?

Resting Metabolic Rate (RMR) represents the number of calories your body burns at complete rest to maintain basic physiological functions like breathing, circulation, and cell production. It accounts for 60-75% of your total daily energy expenditure.

2. How Does The Calculator Work?

The calculator uses the Mifflin-St Jeor Equation:

\[ RMR = 10 \times weight + 6.25 \times height - 5 \times age + (5 \text{ if male}) (-161 \text{ if female}) \]

Where:

\( weight \) — Body weight in kilograms (kg)
\( height \) — Height in centimeters (cm)
\( age \) — Age in years
\( +5 \) — Added for males
\( -161 \) — Subtracted for females

Explanation: This equation is considered one of the most accurate for estimating RMR in healthy individuals and accounts for differences in metabolic rate based on gender.

3. Importance Of RMR Calculation

Details: Knowing your RMR is essential for creating effective nutrition plans, whether for weight loss, weight maintenance, or athletic performance. It provides a baseline for determining your total daily energy needs.

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 values when possible.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this RMR calculation?
A: The Mifflin-St Jeor Equation is approximately 90% accurate for most healthy individuals, though individual variations exist due to factors like body composition and genetics.

Q2: What's the difference between RMR and BMR?
A: Basal Metabolic Rate (BMR) is measured under more strict conditions (complete rest, fasting, thermoneutral environment), while RMR is slightly less restrictive but often used interchangeably in practice.

Q3: How often does RMR change?
A: RMR decreases with age (about 1-2% per decade after age 20) and changes with weight fluctuations, muscle mass changes, and hormonal factors.

Q4: Can I increase my RMR?
A: Yes, through regular exercise (especially strength training), building muscle mass, proper nutrition, and adequate sleep.

Q5: Should I use this calculation for weight loss planning?
A: This provides a good starting point, but for precise weight management, consider consulting with a healthcare professional who can account for your specific circumstances.