Clinical calculations, without the clutter.
Fast calculators, drug dosing tools and clinical references designed for point-of-care use — especially when you're using a phone and time matters.
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Clinical calculators
50+
Drug-dose resources
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Built for quick clinical reference
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Popular clinical tools
Cardiology
Mean Arterial Pressure (MAP) Calculator
Calculate mean arterial pressure from systolic and diastolic blood pressure.
General Medicine
BMI Calculator
Calculate body mass index from height and weight.
Renal
Creatinine Clearance Calculator
Estimate creatinine clearance using the Cockcroft–Gault equation.
General Medicine
Ideal Body Weight Calculator
Estimate ideal body weight using standard clinical formulas.
Emergency & Critical Care
NEWS2 Score Calculator
Calculate the National Early Warning Score 2 for acute illness assessment.
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Everyday clinical calculations
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Kidney function and renal dosing tools
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Child health and weight-based tools
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Pulmonary and oxygenation tools
Explore →Drug Doses
Medication and dosing references
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Find the right dose faster.
Search generic medicines, formulations and weight-based dosing resources. The drug section will be migrated into a structured, reusable system during the next phase.
Explore drug doses →Clinical reference
Built for speed, clarity and responsible use.
RxMedCalc is being rebuilt around reusable calculator engines, structured clinical content and mobile-first interfaces. Always interpret results in the context of the individual patient and applicable clinical guidance.