Calculator of Basal Metabolic Rate

What is BMR?

The basal metabolic rate calculator (BMR) calculates how many calories (energy) your body burns during periods of physical inactivity or rest. These are the calories your body needs to keep it functioning.

For most people, the most significant portion of calories they burn is through their BMR. That is why calculating BMR is so important.

Increasing or Decreasing your BMR

The higher your BMR the more efficient your body is at burning calories, the lower the BMR the less efficient your body is at burning calories.

The best ways to increase your BMR are through regular exercise, especially cardio exercise, and through a healthy diet plan. This becomes more important as you age because your body’s BMR will gradually slow the older you become.

The best ways to decrease your BMR is through physical inactivity, a poor diet, or through diet by not eating.

BMR Formula

The BMR formula below takes into account your age, weight, sex, height, and physical activity level. The only aspect it excludes is your lean muscle mass. This means it may be somewhat inaccurate for someone who is very muscular, because it will underestimate their calories needs, or someone who is significantly obese, because it will overestimate their calorie needs.

How to use this calculator

If one of your goals is to lose weight, this is a great place to start. Many people, who want to lose weight, fail to factor in the calories they are burning during periods of rest. No matter what you do, you burn energy, even during sleep.

Use this calculator in conjunction with the exercise calorie calculator and the food calorie calculator on this site to get an idea of how many calories you consume versus how many calories your burn.

BMR Calculator + Exercise Calorie Calculator = Calories Burned/Day

Calories Burned – Food Calorie Calculator = Total Calories Consumed or Burned