![]() ![]() For those who have an accurate estimate of their body fat percentage, the Katch-McArdle formula may provide a more accurate estimate of BMR. The calculator on this page uses the Mifflin St Jeor equation. How is BMR estimated?īMR is estimated using several different equations. to maintain weight, consume the same number of calories as your BMR.Įveryone's circumstances are different however, and while the above works in theory, it may not work for everyone.to gain weight, consume more calories than your BMR.to lose weight, consume fewer calories than your BMR.The equation used by this calculator to estimate BMR is the Mifflin St Jeor Equation (discussed below).īMR is commonly used as a way to measure the number of calories you need to consume per day in order to lose weight, gain weight, or maintain your weight. A significant amount of research has been done surrounding estimating BMR, and a number of different equations have been developed for this purpose, such as the Mifflin St Jeor Equation, the Harris-Benedict Equation, and the Katch-McArdle formula. BMR and REE are often used interchangeably, because while their definitions differ, they can be used to estimate each other.īecause BMR requires strict conditions to properly measure, such as being awake but completely at rest, it is usually estimated instead. This is also a good estimate of your resting energy expenditure (REE), which is the amount of energy you burn over time while at rest. Your basal metabolic rate (BMR) is the amount of energy that your body requires in order to perform these base functions. To use the calculator, please provide your age, weight, height, activity level, and click the "Calculate" button.Įven while at rest, your body still expends energy to perform functions such as breathing, circulating blood, processing nutrients, producing cells, and more. This calculator is intended for adults between the ages of 18 and 80 years old. This means that your body requires approximately 1,344 calories daily to sustain essential life-sustaining functions, assuming you are at rest and not engaging in physical activity.This BMR calculator estimates the Basal Metabolic Rate (BMR) of a person based on age, sex, body weight, and body height. To estimate your BMR using the Mifflin-St Jeor equation, you would use the following formula:īMR = (10 x 70) + (6.25 x 165) - (5 x 40) - 161 Plug your weight, height, and age into the appropriate equation above.įor example, let's say you are a 40-year-old woman who weighs 70 kilograms and is 165 centimetres tall.Weigh yourself in kilograms and measure your height in centimetres.To measure your BMR using the Mifflin-St Jeor equation, follow these steps: Here's the formula:īMR = (10 x weight in kg) + (6.25 x height in cm) - (5 x age in years) + 5īMR = (10 x weight in kg) + (6.25 x height in cm) - (5 x age in years) - 161 Over to you We will use the Mifflin-St Jeor equation, another commonly used formula to estimate BMR, considered more accurate than the Harris-Benedict equation. The most precise way to determine your BMR is through RMR measurement in a lab or clinic. Remember that these methods estimate your BMR and may not be 100% accurate. Online BMR calculators: You can use online BMR calculators that estimate your BMR based on the same factors as the prediction equations.The most common prediction equation used is the Harris-Benedict equation. Prediction equations: BMR can also be estimated using prediction equations that consider your age, gender, height, and weight.Resting metabolic rate (RMR) measurement involves breathing into a mask that measures the amount of oxygen your body uses and the amount of carbon dioxide you exhale. ![]() There are different methods to measure your BMR, including: Once you have calculated your BMR, you can use it to determine the number of calories you should consume daily to maintain your current weight or to achieve your weight loss or weight gain goals.īMR calculators are commonly used by nutritionists, fitness enthusiasts, and healthcare professionals to help individuals determine their daily caloric needs and to develop personalized diet and exercise plans. This tool estimates the amount of energy your body burns at rest, which means the minimum amount of energy your body needs to maintain essential life-sustaining functions such as breathing, circulation, and organ function.Ī BMR calculator typically uses various factors such as age, gender, height, weight, and activity level to estimate the BMR. You can use a BMR (Basal Metabolic Rate) calculator. The basal metabolic rate (BMR) represents the minimal amount of energy necessary to support essential bodily functions such as respiration, digestion, and circulation, all involuntary processes. ![]()
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