Health Calculators and Tools

Calculator Abberivations and Descriptions

BMI = Body Mass Index is the measurement of = kg/m2

BMR = Basal Metabolic Rate =  the energy expended by an individual at rest  as a result of normal cell and organ function within the body, and accounts for approximately 60–75% of total daily energy expenditure


TDEE = Total Daily Energy Expenditure = is an estimation of how many calories a person burns per day with exercise.

Standards for Calculating Caloric Energy Expenditure For The Day

The HarrisBenedict equation is a method used to estimate an individual’s basal metabolic rate (BMR).  The Harris–Benedict equation may be used to assist weight loss — it was considered the gold standard for some time.

The Mifflin-St Jeor equation is now believed to give the most accurate TDEE result and, is therefore what we used in this calculator. This BMR formula is as follows: BMR (kcal / day) = 10 * weight (kg) + 6.25 * height (cm) – 5 * age (y) + s (kcal / day) , where s is +5 for males and -161 for females.

TIP: Take the Average of the Harris Benedict and the Mifflin St. Jeor Equations for TDEE
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