Calculate by QxMD

Calculate by QxMD

500,000 - 1,000,000 downloads

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View bigger - Calculate by QxMD for Android screenshot
View bigger - Calculate by QxMD for Android screenshot
View bigger - Calculate by QxMD for Android screenshot
From the maker of the apps 'Read', 'The ECG Guide' and 'Pedi STAT' comes 'Calculate', a next-generation medical calculator and decision support tool, freely available to the medical community.

Essential tools in General Practice, Internal Medicine, Cardiology, Surgery, Obstetrics, Nephrology, Hematology, Orthopedics, Pediatrics, Gastroenterology, Neurology, Neurosurgery, Respirology, and more.

"We recommend medical users try the free Calculate by QxMD first..."
-from iMedicalApps review "The best free Medical Calculator apps for the iPhone"

'Calculate' is focused on highlighting tools which are actually useful in clinical practice and serve to impact diagnosis, treatment or determining prognosis.

Helping you make decisions, not just calculate numbers...


• Developed by a collaboration of clinician experts from diverse backgrounds
• Converts recent research publications into practical handheld tools - knowledge translation at its best
• Automatically adapts to your self-described clinical practice
• Unique ‘Question Flow’ technology gets you answers, fast
• Detailed references with Pubmed integration
• Comprehensive and insightful results
• Elegant design and intuitive interface
• SI and Conventional units

More than 150 Unique calculators and Decision Support tools

While too extensive to list them all, here is a small sampling of included content:

Reduce and predict perioperative complications

• WHO Surgical Safety Checklist
• Predictive models for cardiac surgery and coronary angiography

Guide treatment

• Determine cardiovascular risk and guide lipid treatment using the Framingham and Reynolds Risk Scores
• Use the CHADS2 score to guide treatment in atrial fibrillation
• Better understand the risk of bleeding from anticoagulation in atrial fibrillation
• ACS using the TIMI risk score
• Burns with rule of 9s and Parkland formula
• Hypernatremia (calculate water deficit)

Determine Prognosis

• Heart failure
• Lymphoma
• Myelodysplastic Syndrome
• Myeloma
• Glomerulonephritis
• Hemodialysis
• Pancreatitis


• Chemotherapy based on Body Surface Area
• Carboplatin based on AUC
• tPA in acute stroke
• Phenytoin in renal failure and hypoalbuminemia


• Ideal body weight, BMI and BSA
• Due date and gestational age
• Extensive formula used in echocardiogropathy and invasive hemodynamic monitoring
• Kt/V in dialysis patients
• eGFR with CKD-Epi, Cockcroft-Gault, and MDRD
• A-a gradient

• Angina (CCS)
• Congestive heart failure (NYHA)

• Head, neck, ankle and knee injuries
• DVT and PE
• Pulmonary nodules

• Lung cancer
• Renal cell carcinoma

• TTKG (transtubular potassium gradient) in hypokalemia and hyperkalemia
• Dermatomes

• Heparin Induced Thrombocytopenia
• Infective Endocarditis
• Autoimmune Hepatitis

And much more...

Want to keep up with medical research? Get 'Read by QxMD' for Android:

Founded my medical professionals, QxMD is dedicated to creating high quality, point-of-care tools for practicing health care professionals. Recognized as a leading developer of free medical software for mobile devices, QxMD develops content in cooperation with expert physicians from their respective fields.

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Recently changed in this version

New in version 2.2:
- added new DLBCL calculator based on the IPI24 clinical prognostic model

Comments and ratings for Calculate by QxMD
  • (72 stars)

    by Samim Akhtar Gazi on 03/08/2014


  • (72 stars)

    by shivon h on 01/08/2014

    Quick, easy to use.... Very handy

  • (72 stars)

    by Basista Shah on 25/07/2014

    ....must have appp fr a medico Fr a quick calculation. Useful indeed!

  • (72 stars)

    by ghulam farooq on 21/07/2014

    Very unique app for easy use and grt free of cast

  • (72 stars)

    by Andrea Jiménez on 12/07/2014

    muy util y sencilla

  • (72 stars)

    by Neil Barnard on 05/07/2014

    Wish it had a few more critical care calculators. The SOFA score or MODS score would be great

  • (72 stars)

    by Geo Rge on 01/07/2014

    Please make this app for windows phones also, please