Medical Calculators
Accurate medical calculations at your fingertips
Anion Gap
Serum anion gap: Na - (Cl + HCO3).
BMI and BSA Combined
BMI plus BSA (Mosteller) in one calculator.
BMI Calculator
Calculate your Body Mass Index from weight and height.
BMI Calculator (Metric)
Body Mass Index using weight (kg) and height (cm).
BMI Category
BMI and WHO weight category from weight and height.
BSA Calculator (Du Bois)
Calculate Body Surface Area using Du Bois formula.
BSA Du Bois
Body Surface Area using Du Bois formula.
BSA Mosteller
Body Surface Area using Mosteller formula.
BSA-Based Drug Dose
Dose = BSA (m²) × dose per m².
Corrected Calcium
Serum calcium corrected for albumin.
Creatinine Clearance (Cockcroft-Gault)
Estimated creatinine clearance for drug dosing.
FEV1 % Predicted
FEV1 as % of predicted (simplified: uses age, height).
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