General
General Medical Calculators
Common medical math tools used across specialties, including BMI, body surface area, corrected calcium, anion gap, IV rates, and lab unit conversion.
Calculators in this category
9 toolsBMI Calculator (Body Mass Index)Calculate Body Mass Index from weight and height.Corrected Calcium CalculatorCorrect serum calcium for albumin level.Anion Gap CalculatorCalculate serum anion gap from electrolytes.Ideal Body Weight CalculatorCalculate ideal body weight using the Devine formula.Maintenance IV Fluid Rate (4-2-1 Rule)Calculate maintenance IV fluid rate using the 4-2-1 rule.Body Surface Area (BSA) CalculatorCalculate body surface area using Du Bois or Mosteller formula.IV Drip Rate CalculatorCalculate IV infusion rate in mL/hr and drops per minute.Lab Unit Converter (mg/dL ↔ mmol/L)Convert between conventional and SI lab units for common substances.Adjusted Body Weight CalculatorCalculate adjusted body weight for drug dosing in obese patients.