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).
RenalVancomycin Kinetics
Initial empirical dose estimation and steady-state AUC/trough adjustments for IV vancomycin therapy.
AntimicrobialGentamicin Dosing (Hartford)
Extended-interval (once-daily) aminoglycoside dosing calculation and nomogram level interpretation.
AntimicrobialPhenytoin Adjustment
Winter-Tozer equation for adjusting reported total phenytoin levels in the presence of hypoalbuminemia.
NeurologyAmiodarone Loading
Calculate oral or IV loading dose regimens to reach a 10g cumulative target for steady-state arrhythmias.
CardiologyIron Deficit (Ganzoni)
Calculate total body iron deficit to determine the total dose of IV iron required for replacement.
HaematologyBiometrics & Conversions
Opioid Dose Converter
Equianalgesic dose calculations between oral, transdermal, and parenteral opioids with mandatory dose reduction warnings.
Pain ManagementCorticosteroid Converter
Equivalent anti-inflammatory and mineralocorticoid potencies across systemic steroids (e.g., Prednisolone to Dexamethasone).
EndocrinologyBMI & BSA Calculator
Body Surface Area (Mosteller, DuBois) and Ideal Body Weight calculations essential for oncology and narrow therapeutic index dosing.
BiometricsCorrected Calcium
Adjust total serum calcium based on albumin levels to assess true calcemic status.
BiochemistrySodium Correction (Hyperglycemia)
Calculate corrected serum sodium in the presence of severe hyperglycemia (Katz or Hillier formulas).
BiochemistryClinical Evaluation
NNT & ARR Calculator
Calculate Absolute Risk Reduction, Relative Risk, and Number Needed to Treat/Harm from trial event rates.
Evidence Based MedicineCHA₂DS₂-VASc Score
Estimate stroke risk in atrial fibrillation to determine the indication for oral anticoagulation.
CardiologyHAS-BLED Score
Assess 1-year risk of major bleeding for patients on anticoagulation to identify modifiable risk factors.
CardiologyWells' Criteria for PE
Clinical assessment tool for determining the pretest probability of pulmonary embolism.
RespiratoryCURB-65 Score
Predict mortality in community-acquired pneumonia to guide empirical antibiotic choice and admission locus.
Infectious Disease