What Is the Resting Metabolic Rate Mifflin Calculator?
Resting Metabolic Rate measures the minimum calories needed to sustain vital organs and involuntary functions in a non-active resting state.
How Does the Resting Metabolic Rate Mifflin Calculator Work?
Applies the clinical Mifflin-St Jeor equation validated in clinical calorimetry trials.
Resting Metabolic Rate Mifflin Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
RMR = (10 × kg) + (6.25 × cm) - (5 × age) + s (s: +5 male, -161 female)
Scales body mass and stature while subtracting age decline and adjusting for sexual dimorphism.
How to Use the Resting Metabolic Rate Mifflin Calculator
- Enter your sex, age, height, and weight to calculate your baseline 24-hour and hourly caloric expenditures.
Step-by-Step Example Calculation
30-Year-Old Male (75 kg, 178 cm)
Input Values:
gender:male
ageYears:30
weightKg:75
heightCm:178
Understanding Your Result
Reveals your daily baseline calorie burn before factoring in exercise or spontaneous physical movement.
Factors That Affect the Result
- Lean muscle mass, thyroid activity, age, fever, ambient temperature, and genetics.
When Should You Use This Calculator?
- Designing calorie deficit diets, calculating maintenance intake, and programming sports nutrition.
Assumptions & Limitations
- Does not directly differentiate between high muscle athletes and individuals with lower muscle mass at the same scale weight.
Frequently Asked Questions
Calculation Accuracy & Reference Note
Mifflin MD, St Jeor ST, et al. A new predictive equation for resting energy expenditure in healthy individuals. Am J Clin Nutr. 1990.