RMR (Resting Metabolic Rate)
Definition
The number of calories your body burns while at rest in a non-fasting state, similar to but slightly higher than BMR.
Formula
RMR ≈ BMR × 1.1 (approximately 10% higher than BMR)Resting Metabolic Rate is the energy your body expends while at rest in a comfortable, non-fasting state. It includes BMR plus the energy needed for daily non-exercise activities like sitting, standing, and light movement. RMR is typically 10-20% higher than BMR.
RMR is more practical to measure than BMR because it does not require the strict conditions (12-hour fast, complete darkness and quiet) needed for BMR measurement. For most practical purposes, RMR and BMR can be used interchangeably when calculating calorie needs.
Factors that increase RMR include higher muscle mass, younger age, male sex, higher body weight, and certain hormonal conditions like hyperthyroidism. Strategies to boost RMR include strength training to build muscle, eating adequate protein, staying hydrated, and getting sufficient sleep.
Related Calculators
Related Terms
BMR (Basal Metabolic Rate)
healthThe number of calories your body needs to perform basic life-sustaining functions at complete rest, such as breathing, circulation, and cell production.
Metabolic Rate
healthThe speed at which your body burns calories for energy, encompassing basal metabolic rate plus the energy used for activity and digestion.
TDEE (Total Daily Energy Expenditure)
healthThe total number of calories your body burns in a day, combining basal metabolic rate, physical activity, and the thermic effect of food.
Lean Body Mass (LBM)
healthThe total weight of your body minus all fat weight, including muscles, bones, organs, water, and other non-fat tissues.
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