How Many Calories Do You Burn at Rest? BMR and RMR Explained
Dominic Acito
Jul 12, 2026
Most people focus on calories burned during exercise, but the bigger number is happening when you're sitting still. Your body burns somewhere between 1,200 and 2,000 calories a day just keeping you alive — breathing, pumping blood, regulating temperature, repairing cells. This baseline burn is your BMR (Basal Metabolic Rate), and understanding it is the foundation of any weight management strategy.
BMR vs RMR: What's the Difference?
The two terms are often used interchangeably, but they measure slightly different things:
BMR (Basal Metabolic Rate): Calories burned in a true resting state — after 8+ hours of sleep, fasted, and in a temperature-controlled environment.
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