Your body naturally burns calories through its basal metabolic rate (BMR), which is the energy expended to maintain basic life-sustaining functions such as breathing, heart beating, cell production, circulation, and temperature regulation. BMR typically accounts for about 60-70% of the total calories you burn each day

. The average BMR varies by individual factors like age, sex, weight, height, and body composition. For example, the average male has a BMR around 1,696 calories per day, while the average female’s BMR is about 1,410 calories per day

. Overall, a typical range for natural calorie burn at rest is roughly between 1,300 and 2,000 calories daily, depending on these factors

. BMR can be estimated using formulas such as the Harris-Benedict equation, which calculates calorie burn based on weight, height, age, and sex

. This rate reflects the calories your body uses if you were at complete rest in a neutral environment, not including any physical activity or digestion- related calorie use. In summary:

• Your body burns 1,300 to 2,000 calories per day naturally at rest, depending on individual characteristics

• This calorie burn supports essential functions like breathing, circulation, and cell maintenance

• BMR accounts for about 60-70% of your total daily calorie expenditure

This natural calorie burn is the foundation of your metabolism and is critical for survival regardless of activity level.