General & Basic Calculators
BMI, BMR, body composition, and other foundational calculations.
10 calculators in this category
Adjusted Body Weight
Weight used for drug dosing in obese patients, blending actual and ideal body weight.
Blood Pressure Category
Classifies a blood pressure reading per the 2017 ACC/AHA adult BP categories.
BMI (Body Mass Index)
Weight-to-height ratio used to screen for underweight, healthy weight, overweight and obesity.
BMR (Basal Metabolic Rate)
Estimated calories burned at complete rest, using the Mifflin-St Jeor equation.
Body Surface Area (Du Bois)
Du Bois formula estimate of body surface area.
Ideal Body Weight (Devine)
Devine formula estimate of ideal body weight from height.
Lean Body Mass (Boer)
Boer formula estimate of fat-free (lean) body mass.
Mean Arterial Pressure (MAP)
Average arterial pressure during one cardiac cycle.
TDEE (Total Daily Energy Expenditure)
Estimated total daily calorie needs - BMR scaled by activity level.
Waist-to-Height Ratio
Simple screening ratio for central obesity and cardiometabolic risk.
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About General & Basic Calculators
BMI, BMR, body composition, and other foundational calculations. This category currently includes 10 published calculators, each using a referenced clinical formula with a clear result and interpretation. Browse the full list above, or return to all Medical Calculators.