Daily Calorie Intake (or) BMR Calculator


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What is Basal Metabolic Rate?

The minimal number of calories required by a person daily is theoretically known as a Basal Metabolic Rate (BMR). In layman terms, this is solely the number of calories the biological structures in your body need to function when your body is lying idle.Thus, the Basal Metabolic Rate Calculator helps you calculate the BMR.

Since your basal metabolic rate is based mainly on the body's involuntary functions like the respiratory and the circulatory functions, changes in the daily activities do not much raise or lower this number as the digestive system is inactive. However, an increased muscle mass does increase the BMR because muscle is metabolically "hungry" and it usually takes more energy to maintain more muscle.

What is a Calorie?

A calorie is a unit of energy. In terms of nutrition, calories refer to the energy consumed through eating and drinking and the usage of energy through physical activity.

Calories are typed into two:

At a pressure of one atmosphere, the estimated volume of energy required to elevate the temperature of one gram of water by one degree Celsius is rightfully known as a small calorie or a gram calorie. This is symbolized as cal.

Correspondingly, a large calorie or a kilogram calorie, which forms the second type, is merely 1000 small calories. It is predominantly expounded in terms of kilograms instead of grams. This is symbolized as Cal or kcal.

Our Calorie Intake Calculator can aid in determining how many calories are needed in a day and how many are needed to be cut off if one wants to lose weight. The tool can be used to estimate the number of calories a person needs to consume each day. Simple guidelines for gaining and losing weight can also be provided.


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BMR Equation
 
Activity Level

 
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How is the Basal Metabolic Rate (BMR) Calculator and the Calorie Calculator utilized?


The formulas mentioned below are the most prevelant in the BMR calculations.

The Harris Benedict Equation:

BMR(Male) = 66.47 + (13.75 * weight in kg) + (5.003 * height in cm) - (6.755 * age in years)
BMR(Female) = 655.1 + (9.563 * weight in kg) + (1.85 * height in cm) - (4.676 * age in years)

Using this formula, the BMR of a male is calculated using three components. The first component is got by multiplying 13.75 with weight in kilograms. The second component is got by multiplying 5.003 with height in centimeters. The third component is got by multiplying 6.755 with the age in years. Then, the third component is subtracted from the addition of the first two components and the result is added to 66.47 to deliver the BMR of a male.

Using this formula, the BMR of a female is calculated using three components. The first component is got by multiplying 9.563 with weight in kilograms. The second component is got by multiplying 1.85 with height in centimeters. The third component is got by multiplying 4.676 with the age in years. Then, the third component is subtracted from the addition of the first two components and the result is added to 655.1 to deliver the BMR of a female.

The Mifflin St Jeor Equation:

BMR(Male) = (10 * weight in kg) + (6.25 * height in cm) - (5 * age in years) + 5
BMR(Female) = (10 * weight in kg) + (6.25 * height in cm) - (5 * age in years) - 161

Again using this method, the BMR of a male is calculated in three compnents. The first component is got by multiplying weight in kilograms with 10. The second component is got by multiplying height in centimeters with 6.25. The third component is got by multiplying age in years with 5. Then, the third component is subtracted from the addition of the first two components and the result is added to 5 to deliver the BMR of a male.

Using this method, the BMR of a female is calculated in three compnents. The first component is got by multiplying weight in kilograms with 10. The second component is got by multiplying height in centimeters with 6.25. The third component is got by multiplying age in years with 5. Then, the third component is subtracted from the addition of the first two components and 161 is then subtracted from this result. The final result gives you the BMR of a female.

The Calorie Intake Calculator uses the below-mentioned Calorie Formula to derive the calorie intake.

Calorie = BMR * Activity Level

The activity level is multiplied by the BMR to get the calories. Calorie is measured in units as kcal/day.

The activity levels are classified into following levels:

  • Little or no Exercise (1.2) falls under the Sedentary Activity Level.
  • Light exercise or sports one to three times per week (1.375) comes under Slight Activity Level.
  • Moderate exercise or sports for up to three to five times per week (1.55) falls under Moderate Activity Level.
  • Hard exercise or sports for six to seven times per week (1.725) comes under Very Activity Level.
  • Very hard exercise, sports or physical job or training twice a day (1.9) comes under Extra Activity Level.