John Applin

  • Body Surface Area Calculator




    Calculate a patient's body surface area using the Dubois formula: Body Surface area (m^2) = 0.007184 × (patient height in cm)^0.725 × (patient weight in kg)^0.425. Tested against the BNF online calculator.

  • BMI Calculator


    Calculates a patient's Body Mass Index (BMI) using the patient's weight and height using the formula: BMI(kg/m^2) = (patient weight in kg/(patient height in m)^2). Also indicates whether the patient is severely underweight, underweight, normal weight, overweight, obese class 1, obese...

  • Creatinine Clearance Calc




    Calculates an estimate of glomerular filtration rate from patient's age and serum creatinine concentration. Calculated using the Cockcroft and Gault formula: (140 − Age) × Weight × Constant/ Serum creatinine. Male constant = 1.23, Female constant = 1.04. Tested against the BNF online...

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