Medical & Clinical Tools

eGFR Calculator

Estimated GFR with the race-free CKD-EPI 2021 equations and CKD stage.

Creatinine Clearance Calculator

Cockcroft–Gault creatinine clearance with actual, ideal and adjusted weight.

Corrected Calcium Calculator

Albumin-corrected calcium in mg/dL or mmol/L.

Corrected Sodium Calculator

Sodium corrected for high glucose with the Katz and Hillier formulas.

Anion Gap Calculator

Anion gap, albumin-corrected gap and delta ratio.

Serum Osmolality Calculator

Calculated serum osmolality and osmolal gap.

Body Surface Area Calculator

BSA with the Mosteller, DuBois, Haycock, Gehan–George and Boyd formulas.

Adjusted Body Weight Calculator

Ideal, adjusted and lean body weight for drug dosing.

QTc Calculator

Corrected QT interval with the Bazett, Fridericia, Framingham and Hodges formulas.

Mean Arterial Pressure Calculator

MAP and pulse pressure from systolic and diastolic blood pressure.

Shock Index Calculator

Shock index, modified shock index and age shock index.

P/F Ratio Calculator

PaO₂/FiO₂ ratio with Berlin ARDS severity and SpO₂/FiO₂.

A–a Gradient Calculator

Alveolar–arterial oxygen gradient with the age-expected value.

Medical Lab Unit Converter

Convert 30 lab tests between conventional and SI units.

Blood Glucose Converter

Convert blood sugar between mg/dL and mmol/L.

Cholesterol Unit Converter

Convert cholesterol and triglycerides between mg/dL and mmol/L.

Creatinine Unit Converter

Convert creatinine between mg/dL and µmol/L.

HbA1c Converter

Convert HbA1c between %, mmol/mol and estimated average glucose.

Drug Dose Calculator

Weight-based (mg/kg) and BSA-based (mg/m²) doses with volume to give.

Drug Dilution Calculator

Solve C₁V₁ = C₂V₂ for stock volume, diluent, final concentration or volume.

IV Infusion Rate Calculator

IV rates in mL/h and drops/min, including weight-based drips.

Drug Half-Life Calculator

Elimination half-life, rate constant and amount remaining over time.

Pharmacokinetic Calculator

Non-compartmental Cmax, Tmax, AUC, half-life, clearance and volume.

Loading Dose Calculator

Loading dose from target concentration, volume of distribution and bioavailability.

Maintenance Dose Calculator

Maintenance dose from clearance, target concentration and dosing interval.

Incidence Calculator

Cumulative incidence (risk) with an exact confidence interval.

Person-Time Incidence Rate Calculator

Incidence rate per person-years with an exact Poisson interval.

Prevalence Calculator

Point or period prevalence with confidence interval, or from incidence and duration.

Attack Rate Calculator

Attack rates, secondary attack rate and exposure comparison for outbreaks.

Mortality Rate Calculator

Crude, cause-specific, infant and maternal mortality rates with CIs.

Case Fatality Rate Calculator

Case fatality rate with confidence interval and CFR among resolved cases.

Attributable Risk Calculator

Risk difference and attributable fraction among the exposed.

Population Attributable Risk Calculator

Population attributable risk and fraction with Levin's and Miettinen's formulas.