Medical Calculator

With over 296,000 users, Medical Calculator helped doctors and nurses compute useful formulas and equations.

Featured Calculations

• A-a Oxygen Gradient
• ABCD2 Score for TIA
• Absolute Neutrophile Count (ANC)
• Age Calculator
• Alcoholic Hepatitis Discriminant Function
• Anion Gap
• APACHE II Score
• APGAR Score
• Basal Energy Expenditure
• Body Mass Index (BMI)
• Body Surface Area (BSA)
• Bicarb Deficit
• CHADS2 Score for stroke risk
• Child-Pugh Score
• Corrected Calcium for Hypoalbuminemia
• Corrected Phenytoin
• Corrected QT for HR (QTc)
• Corrected Sodium
• Creatinine Clearance (Cockcroft-Gault)
• Creatinine Clearance (Measured)
• CSF WBC Correction for RBCs
• Delta Gap
• Fick Cardiac Output
• Fractional Excretion of Sodium (FENa)
• Fractional Excretion of Urea (FEUrea)
• Framingham Cardiac Risk
• Free Water Deficit
• GFR (Cockcroft-Gault)
• GFR (MDRD)
• Glasgow Coma Scale
• Ideal Body Weight (IBW)
• IV Dose Calculator
• IV Infusion Rate
• LDL Cholesterol
• Lean Body Weight
• Maintenance Fluids
• Mean Arterial Pressure (MAP)
• MELD Score (Model for End-Stage Liver Disease)
• Opioid (Narcotic) Converter
• Oxygenation Index
• Parkland Burns
  • Fluid requirements for first 8 hours
  • Fluid requirements for first 24 hours
• Peak Expiratory Flow
• PERC Rule
• PORT (PSI) Score
• Pregnancy Wheel
  • Enter last menstrual period (LMP) or due date (EDC)
  • Conception date
  • 1st trimester date
  • 2nd trimester date
  • Estimated Date of Confinement (EDC, due date)
  • Weeks pregnant today
• Ranson’s Criteria for pancreatitis mortality
• Renal Failure Index
• Serum Osmolality
• Steroid Converter
• TIMI Score for STEMI
• TIMI Score for UA/NSTEMI
• Weight Conversions
• Well’s Criteria for Pulmonary Embolism (PE)
• Winter’s Formula for Metabolic Acidosis Compensation
• Support for US and SI units