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You burn most of your daily calories without any conscious effort. The calories consumed to maintain basic functions in the body are called BMR for short. This basal metabolic rate is approximately close to the resting metabolic rate or RMR, which is the energy expended only for the function of vital organs such as the heart, lungs, and so on.

Knowing your BMR will help you adopt a weight loss strategy. By determining your basal calorie intake and daily activity level, the amount of calories your body needs to lose, gain, and maintain weight is calculated.

Note that consuming calories below 1100 per day and losing more than one kilogram per week is not recommended.

To calculate daily calorie intake, complete the following options according to the specified unit.

Basic metabolism calories:

Calories consumed daily to maintain weight:

Calories needed daily to lose half a kilo per week:

Calories needed daily to gain half a kilo per week:


Basal Metabolic Rate (BMR) is the total amount of calories your body needs to perform its normal, basic function at rest.

This basic function includes blood circulation, respiration, cell division, protein synthesis, ion transport, energy utilization by muscles, nerves, and cells.
There are several ways to determine basal metabolic rate, but the most accurate are measured in the laboratory and under certain conditions (stress-free, at rest, at regular intervals of food and exercise, caffeine intake, proper heart rate, etc.).
Because laboratory tests are so expensive, they use a formula designed by experts to estimate BMR, and you only need a calculator to determine it.
Knowing your BMR helps you adjust your calorie intake to lose, gain or maintain weight.
Note that consuming less than 1100 calories per day and losing more than 1 kg per week is not recommended.