Clinical Tools Index

Independent, peer-reviewed calculators built to strict national guidelines. All computations are performed locally in your browser to guarantee zero patient data transmission.

Pharmacokinetics & Dosing

Creatinine Clearance (CrCl)

Cockcroft-Gault equation for estimating renal function to guide drug dosing adjustments (e.g., DOACs).

Renal

Vancomycin Kinetics

Initial empirical dose estimation and steady-state AUC/trough adjustments for IV vancomycin therapy.

Antimicrobial

Gentamicin Dosing (Hartford)

Extended-interval (once-daily) aminoglycoside dosing calculation and nomogram level interpretation.

Antimicrobial

Phenytoin Adjustment

Winter-Tozer equation for adjusting reported total phenytoin levels in the presence of hypoalbuminemia.

Neurology

Amiodarone Loading

Calculate oral or IV loading dose regimens to reach a 10g cumulative target for steady-state arrhythmias.

Cardiology

Iron Deficit (Ganzoni)

Calculate total body iron deficit to determine the total dose of IV iron required for replacement.

Haematology

Biometrics & Conversions

Opioid Dose Converter

Equianalgesic dose calculations between oral, transdermal, and parenteral opioids with mandatory dose reduction warnings.

Pain Management

Corticosteroid Converter

Equivalent anti-inflammatory and mineralocorticoid potencies across systemic steroids (e.g., Prednisolone to Dexamethasone).

Endocrinology

BMI & BSA Calculator

Body Surface Area (Mosteller, DuBois) and Ideal Body Weight calculations essential for oncology and narrow therapeutic index dosing.

Biometrics

Corrected Calcium

Adjust total serum calcium based on albumin levels to assess true calcemic status.

Biochemistry

Sodium Correction (Hyperglycemia)

Calculate corrected serum sodium in the presence of severe hyperglycemia (Katz or Hillier formulas).

Biochemistry

Clinical Evaluation

NNT & ARR Calculator

Calculate Absolute Risk Reduction, Relative Risk, and Number Needed to Treat/Harm from trial event rates.

Evidence Based Medicine

CHA₂DS₂-VASc Score

Estimate stroke risk in atrial fibrillation to determine the indication for oral anticoagulation.

Cardiology

HAS-BLED Score

Assess 1-year risk of major bleeding for patients on anticoagulation to identify modifiable risk factors.

Cardiology

Wells' Criteria for PE

Clinical assessment tool for determining the pretest probability of pulmonary embolism.

Respiratory

CURB-65 Score

Predict mortality in community-acquired pneumonia to guide empirical antibiotic choice and admission locus.

Infectious Disease