Resting metabolic rate
Resting metabolic rate (RMR) is the amount of energy or calories that your body burns at rest to perform basic physiological functions such as breathing, circulating blood, and maintaining body temperature. It represents the minimum amount of energy required by your body to keep it functioning while at complete rest.
The calculation of RMR is based on various factors, including your age, sex, height, weight, and body composition (the proportion of fat and muscle in your body). There are several equations that have been developed to estimate RMR, with the most common one being the Harris-Benedict equation.
To calculate your RMR using the Harris-Benedict equation, you will need to know your sex, age, weight, and height. Here are the formulas for men and women:
For men:
RMR = 88.362 + (13.397 × weight in kg) + (4.799 × height in cm) - (5.677 × age in years)
For women:
RMR = 447.593 + (9.247 × weight in kg) + (3.098 × height in cm) - (4.330 × age in years)
Note that these equations provide an estimate of your RMR, and personal variations can exist. Additionally, RMR does not account for physical activity or exercise, so it represents the calories burned at complete rest.
It's worth mentioning that there are online RMR calculators available that can help you determine your RMR quickly by inputting your information. Always keep in mind that RMR may vary from person to person, and if you want a more accurate measurement, it's best to consult with a healthcare professional or registered dietitian.