About the project
About MedMaths
MedMaths is a focused medication-maths calculator library built to make common dose, tablet, IV, dilution, body-measure, and renal calculations easier to check.
Who writes MedMaths
MedMaths is created and written by George Lambroglou, RN, an Australian registered nurse with clinical experience across oncology, haematology, and critical care. The site grew from the need for medication calculations that are fast to use but still show the formula, working, and important limitations.
A page only names a separate clinical reviewer when an independent review has actually occurred. Otherwise, the page identifies its author and review date without implying an additional reviewer.
How the calculator library is designed
Arithmetic first
Each calculator focuses on a defined formula and shows the inputs, result, and working without presenting the result as a prescribing decision.
Sources shown
Recognised formulas and educational methods are linked to supporting references where practical so users can check the method directly.
Limits made visible
Safety prompts explain what the calculator does not check, including medicine suitability, dose limits, compatibility, local policy, and patient-specific risk.
What MedMaths covers
The library is intentionally narrower than a general medical-calculator directory. It concentrates on medication calculation search intent where the input units, arithmetic, and output can be explained clearly.
- Dose-to-volume conversions
- Tablet and weight-based tablet dosing
- IV flow rates and infusion duration
- Dilution and reconstitution arithmetic
- BSA and ideal body weight
- Cockcroft-Gault creatinine clearance
What the calculators do not do
MedMaths calculates arithmetic. It does not prescribe, confirm that a dose is clinically appropriate, identify contraindications, verify compatibility, replace product information, or override local medication policy and independent-check requirements.
Calculator inputs are processed in the browser and are not intended to be entered as identifiable patient information. Read the privacy policy and medical disclaimer for more detail.