Pharmacology Calculators — Clinical Medicine
11 free pharmacology calculators in clinical medicine. Each tool shows step-by-step formulas, worked examples, and detailed explanations to help you get accurate results instantly.
All Pharmacology Calculators
Assess acetaminophen toxicity risk from dose ingested and time using the Rumack-Matthew nomogram.
Calculate extended-interval aminoglycoside doses and monitoring from weight and CrCl.
Estimate creatinine clearance for drug dosing using the Cockcroft-Gault equation.
Calculate digoxin loading and maintenance doses from weight, renal function, and lean body mass.
Calculate extended-interval gentamicin doses from weight and renal function.
Calculate weight-based heparin drip rates and bolus doses with aPTT adjustments.
Convert between opioid medications using morphine milligram equivalents (MME).
Correct phenytoin levels for albumin and renal function using Winter-Tozer equation.
Convert between equivalent doses of corticosteroids (prednisone, dexamethasone, hydrocortisone).
Calculate initial vancomycin doses based on weight, renal function, and target trough.
Estimate warfarin maintenance doses based on INR results and dosing algorithms.
About Pharmacology Calculators
Our pharmacology calculators in clinical medicine are designed for students, professionals, and anyone who needs quick, accurate results. Every calculator includes the underlying formula, step-by-step solutions, and real-world worked examples so you can understand the math behind the answer.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common pharmacology scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 11 tools: Acetaminophen Toxicity Calculator, Aminoglycoside Dosing Calculator, Creatinine Clearance Cockcroft Gault Calculator, Digoxin Dosing Calculator, Gentamicin Dosing Calculator, Heparin Dosing Calculator, Opioid Conversion Calculator, Phenytoin Correction Calculator, and 3 more. Each calculator is free to use with no signup required.