BMR Calculation Formula Explained for Beginners

To improve your health and fitness it's important to first determine how many calories your body needs.

Many health organizations promote metabolic health and understanding your BMR is essential to living an optimal life.

The concept of BMR can seem complex but the reality is that it is relatively easy to understand once you break it down. Once you know your BMR you are then able to effectively control your weight gain, improve your fitness, and setup a nutritional plan very effectively.

Why BMR Matters

When you are asleep at night, you still require energy to carry out all of the above functions and you will continue to burn anywhere from 150 to 800 calories while doing so.

An understanding of your BMR allows you to know how many calories you should be consuming on a daily basis. Many trainers or fitness organizations like the Mayo Clinic utilize the BMR as a base for all diet exercise programs.

When an individual does not understand their BMR or fails to calculate their BMR they are at risk of being over underweight.

BMR is also beneficial for individuals wishing to

• Lose weight
• Gain weight

Also, following a balanced approach to weight management based on your BMR will help you achieve long-term success because your body will be able to operate normally due to the appropriate amount of energy it receives and due to the fact that you will be able to reach your goals.

Essentially, your BMR will determine how many calories you will burn each day and therefore fitness and nutrition experts often combine both BMR and physical activity level to develop individualised eating patterns.

In addition to these advantages, knowing your BMR can help you maintain motivation while making lifestyle changes, as well as provide a means for tracking progress throughout your health improvement journey.

How to Calculate Your BMR

To calculate your BMR you would use the BMR calculator. The most common BMR calculation method is the Mifflin St Jeor method but it is not the only one.

The Mifflin St Jeor equation is typically considered the most accurate method for calculating BMR and appropriate for most people.

Weight, height, and age are the three variables used in the BMR calculator, and each of these three components of the calculation directly contribute to the amount of energy that one requires.

The Mifflin St Jeor equation has been validated as one of the most accurate estimates of your BMR by many respected health organisations and medical professionals including Harvard Medical School and the University of Colorado.

How The Formula Operates

The formula uses the measurements of your body to estimate your total energy requirement. Generally used in combination with your weight, height, and your age, the formula gives you a convenient way to find out exactly how much energy you need on a daily basis.

For example: A younger person has a higher basal metabolic rate than an older person. In addition, a person who has more of a body mass weight than another person will usually burn more calories than the other person at rest.

Why This Formula Is So Popular

Because it is so straightforward to use and requires no complex equipment or tests, the Mifflin St Jeor formula is a very widely accepted and used method for estimating your daily caloric needs.

Although it is not 100 percent accurate for everyone, it is a good starting point and many fitness professionals use the Mifflin St Jeor equation to develop diet and exercise programs for their clients.

Factors Affecting BMR

One of the largest influences on BMR is the age of the individual. When an individual ages, their metabolism automatically slows and, as a result, their BMR is lower than that of a younger person.

Another element affecting BMR is body composition of the individual. Individuals with more muscle have a higher BMR because muscle burns more calories at rest than fat does.

Major Components of BMR

Numerous factors contribute to how your body utilizes energy while in the resting state.

Factors Affecting Your Body's Caloric Burning Ability

• Exercise
• Quantity of sleep
• Level of stress

Exercise, quantity of sleep, & level of stress all directly impact how effectively your body burns calories.

BMR vs TDEE

Many new people confuse the two. However, understanding how BMR & TDEE differ can assist you in determining the number of calories you need to eat each day.

According to health experts at the Mayo Clinic, TDEE uses BMR as its basis, and adds in the number of calories you burn through all daily activities exercise digestion & any type of movement.

By understanding these two values BMR & TDEE, you can adjust the caloric intake level of your diet to match your lifestyle. BMR provides you with a starting point, while TDEE provides you with the actual energy requirement to lose maintain or gain weight.

Calculating Your Total Daily Energy Expenditure TDEE

TDEE is calculated by multiplying BMR by your individual level factor of physical activity.

The Importance of BMR & TDEE

Only using BMR to calculate calories will lead to inaccurate caloric planning because it does not include typical daily movement that you have along with your BMR.

TDEE offers a clearer picture of your energy needs thus making it easier for you to formulate an appropriate diet and fitness plan that can help you achieve long-term health goals without unnecessary restrictions.

BMR Calculation Steps

There’s no need for complicated equipment to perform this BMR calculation, just keep it simple by gathering the following information about yourself age height weight and gender.

Many professional sources, including Harvard Medical School and other experts recommend the BMR calculation method because it is quick and easy to do.

Steps

• Record your age in years
• Apply the relevant BMR formula to your sex male or female

Once you have calculated the BMR number, you will now have your estimated amount of calories required based upon your own individual body size on a daily basis. You can use this number to assist with your diet and exercise program.

Using BMR for Weight Loss Fitness Goals

Establishing an accurate BMR is an important component of creating desirable goals for your weight fitness program.

You can use your basal metabolism rate BMR to learn about the number of calories per day your body requires and how many you will need to consume in order to produce a caloric deficit or surplus.

Fitness professionals and applications like MyFitnessPal use BMR as an initial reference to measure caloric intake.

Common Mistakes When Calculating Your BMR

• Incorrect height value entered
• Not taking into account the age of the individual
• Utilizing an expired or incorrect BMR Formula

Having accurate details about your BMR will help ensure that you are working with a correct number.

Using Tools and Apps to Easily Track Your BMR

Not only do these apps let you figure out your basal metabolic rate BMR, but they also help you keep track of your nutrition and physical activity over time.

The features of these applications eliminate the possibility of making errors by providing you with reminders insights and tracking features that enable you to maintain consistency within your program.