Use our online BMR (Basal Metabolism Rate) calculator now based on age, weight, height and gender only. Our calculator uses the Harris-Benedict equation to display and explain the results.
The Basal Metabolism Rate is the amount of energy the body spends in absolute rest to maintain vital functions such as breathing, blood circulation, brain activity and maintenance of body temperature.
There are several different equations for calculating BMR, but one of the most popular is the Harris-Benedict Equation. This equation considers the age, weight, height and sex of the individual.
BMR (Basal Metabolism Rate) Calculator
Your BMR is XX calories per day.
What is the benefit of knowing the TMB?
Knowing your Basal Metabolism Rate (BMR) can have many benefits for a person's health and well-being. Here are some examples:
- Helps to control weight: Knowing your BMR can help you determine how many calories you need to consume each day to maintain, gain, or lose weight. If you're trying to lose weight, a calorie deficit can be created by consuming fewer calories than your BMR.
- Help with nutrition and meal planning: Knowing your BMR can also help you plan your meals and choose foods based on your caloric needs. For example, if your BMR is low, you may need to choose more nutrient-dense foods to meet your nutritional needs.
- Assists in physical training: BMR can be used to determine how many calories you need to consume to maintain or increase muscle mass. Knowing your BMR can also help you adjust the amount of exercise you do to reach your goals.
- Health monitoring: Significant changes in BMR can indicate health issues such as hypothyroidism or other metabolic diseases. Therefore, measuring your BMR on a regular basis can help you monitor your health and detect potential problems early.
How to Interpret the Result?
The interpretation of the TMB result depends on the person's objective. Here are some general tips:
- If your goal is to maintain your current weight, your daily calorie intake should equal your BMR.
- If the goal is to lose weight, a diet with a caloric intake lower than the BMR may be necessary.
- If the goal is to gain weight or muscle mass, a diet with a caloric intake greater than the BMR, along with strength training, may be necessary.
For example, if a person's BMR is 1500 calories, they can maintain their current weight by consuming 1500 calories a day. If the goal is to lose weight, a diet with a caloric intake of less than 1500 calories per day may be necessary. If the goal is to gain weight or muscle mass, a diet with a caloric intake greater than 1500 calories per day, combined with strength training, may be necessary.
It is important to remember that BMR is only an estimate and may vary between individuals. Daily physical activity, basal metabolism, genetics and other factors can affect a person's BMR. Therefore, it is always recommended to consult a healthcare professional before making any significant dietary or exercise changes.
Harris Benedict Formula and Equation
The equation used in this calculator is the Harris-Benedict equation, which takes into account a person's age, weight, height, and gender. The formula for calculating BMR using the Harris-Benedict equation is different for men and women:
BMR = 88.36 + (13.4 x weight in kg) + (4.8 x height in cm) - (5.7 x age in years)
BMR = 447.6 + (9.2 x weight in kg) + (3.1 x height in cm) - (4.3 x age in years)
Where “BMR” represents the person's Basal Metabolism Rate.
In addition to the Harris-Benedict equation, another popular equation used to calculate BMR is the Mifflin-St. Jehor.
This equation also considers the person's age, weight, height, and gender. Here is the formula for calculating BMR using the Mifflin-St equation. Jeor:
BMR (men and women) = (10 x weight in kg) + (6.25 x height in cm) - (5 x age in years) + s
where “s” is a constant that is added or subtracted depending on the person's gender:
- For men: s = 5
- For women: s = -161
The Mifflin-St. Jeor is considered to be one of the most accurate equations for calculating BMR, but like all BMR equations, it is only an estimate and may vary between individuals.