Basal metabolic rate vs. resting metabolic rate Basal metabolic rate (BMR) is often used interchangeably with resting metabolic rate (RMR ).
BMR minimum number of calories required for basic functions at rest
RMR is the number of calories that your body burns while it’s at rest.
BMR estimation formulas Mifflin-St Jeor Equation: For men : BMR = 10W + 6.25H - 5A + 5 For women: BMR = 10W + 6.25H - 5A - 161
BMR estimation formulas Revised Harris-Benedict Equation: For men : BMR = 13.397W + 4.799H - 5.677A + 88.362 For women : BMR = 9.247W + 3.098H - 4.330A + 447.593 Katch -McArdle Formula: BMR = 370 + 21.6(1 - F)W where : W is body weight in kg H is body height in cm A is age F is body fat in percentage
How many calories you need everyday If you’ve estimated your BMR using the Harris-Benedict formula, your next step is to include the number of calories you burn during daily activities based on your lifestyle: Sedentary. If you get minimal or no exercise, multiply your BMR by 1.2 .
How many calories you need everyday Lightly active. If you exercise lightly one to three days a week, multiply your BMR by 1.375.
How many calories you need everyday Moderately active. If you exercise moderately three to five days a week, multiply your BMR by 1.55.
How many calories you need everyday Very active. If you engage in hard exercise six to seven days a week, multiply your BMR by 1.725.
How many calories you need everyday Extra active . If you engage in very hard exercise six to seven days a week or have a physical job, multiply your BMR by 1.9.
Ref Ability of the Harris Benedict formula to predict energy requirements differs with weight history and ethnicity 2007: Crystal C . Douglas , Jeannine C. Lawrence , Nikki C. Bush , Robert A. Oster , Barbara A. Gower , and Betty E. Darnell .