BMR Calculator - Calculate Your BMR

BMR Calculator  will estimate your Basal Metabolic Rate (BMR). Your BMR is the amount of energy your body burns at rest.  Your Basal Metabolic Rate (BMR) is the number of calories you burn as your body performs basic (basal) life-sustaining function.

More about BMR Calculator

Your BMR defines your basal metabolism rate which makes up about 60-70% of the calories we use (“burn” or expend). This includes the energy your body uses to maintain the basic function of your living and breathing body, including:

  • The beating of our heart
  • Cell production
  • Respiration
  • The maintenance of body temperature
  • Circulation
  • Nutrient processing

How is BMR calculated?

The three equations used by the calculator are listed below:

– Mifflin-St Jeor Equation:

For men:
BMR = 10W + 6.25H – 5A + 5
For women:
BMR = 10W + 6.25H – 5A – 161
– Revised Harris-Benedict Equation:
For men:
BMR = 13.397W + 4.799H – 5.677A + 88.362
For women:
BMR = 9.247W + 3.098H – 4.330A + 447.593
– Katch-McArdle Formula:
BMR = 370 + 21.6(1 – F)W

where:

W is body weight in kg
H is body height in cm
A is age
F is body fat in percentage

BMR for man calculation – an example

In this paragraph, we will go through an example of a BMR calculation for a man. We will have to use the BMR for man formula (Mifflin and St Jeor BMR equation for a man):

BMR (kcal/day) = 10 × weight (kg) + 6.25 × height (cm) – 5 × age (y) + 5 (kcal/day)

BMR for woman calculation – an example

This time we will try to calculate BMR for a woman. We are going to use a slightly different formula – Mifflin and St Jeor BMR equation for women.

BMR (kcal/day)= 10 × weight (kg) + 6.25 × height (cm) – 5 × age (y) – 161 (kcal/day)

BMR Calculator - Calculate Your Basal Metabolic Rate
BMR Calculator - Calculate Your Basal Metabolic Rate