Calculate by QxMD

Calculate by QxMD hospital

Calculate by QxMD

Calculate by QxMD
Calculate by QxMD|Download the iPhone APP from AppStore

From the developer of 'Read by QxMD', 'The ECG Guide' and 'Pedi STAT' comes 'Calculate', a next-generation clinical calculator and decision support tool, freely available to the medical community.

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

'Calculate' highlights tools which impact clinical practice either by simplifying diagnosis, clarifying treatment options or displaying prognosis.

Helping you make decisions, not just calculate numbers…


• Developed by a collaboration of clinician experts from diverse backgrounds
• Point-of-care tools in the areas of cardiology, internal medicine, primary care, nephrology, hematology, hepatology, gastroenterology, emergency medicine, oncology, orthopedics, critical care/ICU, ENT, radiology, rheumatology, mental health, respirology, neurology, pediatrics, infectious disease, neurosurgery, general surgery, vascular surgery, and obstetrics.
• Converts recent research publications into practical handheld tools – knowledge translation at its best
• Automatically adapts to your clinical practice
• Unique ‘Question Flow’ technology gets you answers, fast
• Detailed references with PubMed & Read integration
• Comprehensive and insightful results
• Elegant design and intuitive interface
• SI and Imperial units

More than 200 unique calculators and decision support tools

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

Guide treatment

• Determine cardiovascular risk using ACC/AHA, Framingham, Gupta and VQI Cardiac Risk Index
• CHADS2 & CHA2DS2-VASc to guide treatment in atrial fibrillation
• Understand bleeding risk in atrial fibrillation using HAS-BLED & OBRI
• TIMI risk score in ACS
• CIWA in alcohol withdrawal
• Rule of 9s & Parkland formula in burns
• Water deficit in hypernatremia
• Timing of surgery with Aortic Stenosis Risk Score
• Risk stratify pneumonia (CURB-65, PORT)
• NIH Stroke Scale in acute stroke
• Imaging in possible subarachnoid hemorrhage with Ottawa SAH Rule

Determine Prognosis

• Cirrhosis (MELD, Child-Pugh)
• Chronic Kidney Disease (Kidney Failure Risk Equation)
• Heart failure
• Lymphoma (NCCN-IPI, IPI24, R-IPI)
• Myelodysplastic Syndrome (IPSS-R, WPSS)
• Myeloma (ISS, R-ISS)
• Hemodialysis
• COPD (Bode)
• Pancreatitis (BISAP, Ranson's)
• Cardiac surgery (Euroscore II, Cleveland Clinic, Mehta)
• Critical care (APACHE II, SOFA)
• Neurologic outcome (DRAGON, CAM-ICU, modified Rankin, FOUR score, Hunt & Hess)


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


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


• Diabetes
• Breast cancer

Reduce and predict perioperative complications

• WHO Surgical Safety Checklist
• Predictive models for cardiac surgery, vascular surgery and coronary angiography
• Postoperative Respiratory Failure Risk score


• Head, neck, ankle and knee injuries (NEXUS, Ottawa ankle/knee, Canadian C-spine and CT head rules)
• DVT and PE (PERC, Wells, PESI)
• Pulmonary nodules


• Lung cancer
• Renal cell carcinoma
• Head & neck cancers


• TTKG in hypokalemia and hyperkalemia
• Dermatomes


• Heparin Induced Thrombocytopenia
• Infective Endocarditis
• Autoimmune Hepatitis
• Sleep disorder (Epworth Sleepiness Scale)

And much, much more…

Researchers, contact us to see your research in our app at [email protected]

Founded my medical professionals, QxMD Software 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.



Download the[Calculate by QxMD]@iPhone App

Calculate by QxMD|Download the iPhone APP from AppStore

Evaluation at the itunes store

Evaluation of iPhone App [Calculate by QxMD] at itunes store

  • newest version:4.8 out of 5 stars (4.8 / 5)4.79539
  • All versions:4.8 out of 5 stars (4.8 / 5)4.8

Number of people evaluated:4164



Screenshots of iPhone Apps [Calculate by QxMD]

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(c)QxMD Medical Software

People reviews

Impression and review of people to iPhone App [Calculate by QxMD]!

  • Dr.Sam Vaughn
    by aviansam on April 4, 2021 at 7:08 pm


  • Love it so far
    by Soli yoga on February 9, 2021 at 8:56 pm

    Loving it so far. I would like to request a drug compliance calculator. And maybe a research nurse specialty. We have to use whatever calculator our sponsor wants us to for our studies which makes this app super useful.

  • Calculations
    by whateverdoc on August 3, 2020 at 6:08 pm

    Looks interesting but need more time to evaluate.

  • Great app could be even greater if...
    by dmar82 on August 26, 2018 at 2:45 pm

    This could be a money maker for the developers if they gave the option for putting a name and date and top and then the ability to print so we can put it in EHR or even better integrate with the ehr and send the results to the ehr. Providers are now getting paid by insurance for administering scales but they must be documented in the chart. I would pay (to a. Retain price point of course) to see that happen. I recently emailed you saying something similar. I have notable experiences as a user interface tester for an ehr and can provide assistance if you need a consultant a few hours a month. -DanielleZ

  • Great App
    by UzoAlmighty on June 15, 2018 at 4:25 am

    I very much enjoy this app One of my go tos on the job

  • Crashes
    by Al4562 on May 14, 2018 at 7:06 am

    Crashes constantly

  • Translate
    by 8br90f on April 12, 2018 at 3:32 pm

    Better if Spanish option

  • Great App for students
    by YourReview guy on September 29, 2017 at 3:40 pm

    Easy to use and comes in handy on rotations!

  • Don't waste you're time
    by NP Tom on September 22, 2017 at 5:10 pm

    Absolutely worst support I have ever experienced. App will not update and most calls won't function. Emailed them and no one ever responded. Don't waste your time.

  • Easy to navigate
    by tbrain10 on September 8, 2017 at 2:47 am

    I like it! If I would change one thing, I'd make it easier to clear current inputs and start over, especially for trending labs ovee Time.

  • The best iPhone Med !
    by Alvarotamayo on August 7, 2017 at 4:40 pm

    The best iPhone Med calc I have used so far, maybe just add a save function so you can look back at previous scores

  • Good application
    by Ehabsci on June 23, 2017 at 9:08 pm

    Practical supportive and gives u all needed tools for medical practice.

  • Good
    by Chazilla on June 10, 2017 at 3:10 am


  • Great app
    by Bns3 on May 28, 2017 at 1:36 am

    Highly recommend it great interface provides references and ranges with links to original literature related to certain score.

  • Great app design. Use it frequently.
    by RheumaticFever on April 20, 2017 at 3:15 pm

    Great app design. Use it frequently.

  • Variety of calculators available
    by Esr86 on March 31, 2017 at 2:02 am

    Gives a variety of calculators available. Latest update added ads, but I'm actually able to use the app again.

  • Good app ever
    by outofline123 on March 15, 2017 at 10:46 am

    Love this app so much

  • ACNP student
    by DNP hopeful on February 26, 2017 at 11:03 pm

    Very helpful during clinical rotations.

  • Great app
    by Perez Sepenu on February 18, 2017 at 6:24 am

    Very useful

  • Very
    by Yassirqais on January 27, 2017 at 11:33 am

    Very helpful. Thank you.

  • glitch: can't change settings
    by MorseCode4650 on January 10, 2017 at 7:05 pm

    The app won't let me change the settings that it forced me to pick at the start. When I try to exit the settings menu after having changed them, the app asks me to "input a valid email". I've already given it my email and activated my account!

  • Jdoc
    by 31.49. on November 25, 2016 at 12:02 pm

    Very helpful in daily patient care

  • Nice app!
    by Cook in Eugene, Oregon on October 26, 2016 at 5:17 pm

    This app is very easy to use, fast, complete and well organized. Someone put a lot of thought into this and it shows. Good job! (FYI: They do ask for some personal information when starting the app for the first time.)

  • Super app
    by Ski mike on October 7, 2016 at 4:29 pm

    They stay up to date on new tools

  • Awesome sauce
    by Nurse_Dude on July 8, 2016 at 6:11 pm

    This application is the most versatile app on the market for use in diagnostic intentions. Really it should be a pay for app, that's how good. It is accurate and offers so many grading scores it's not even funny.

  • Very good app
    by spl3 on June 18, 2016 at 8:47 pm

    Over 300 calculators/tools. Quick and easy to use.

  • Extra
    by Naiarul on June 12, 2016 at 5:36 pm

    Excellent med calculator includes Epworth sleepiness scale and pretest probability for CAD

  • Qx Calculate
    by TimothyWC on May 26, 2016 at 3:03 pm

    A wonderful tool to help quide nursing care and care plans

  • Very good app
    by Dr_Stan on April 26, 2016 at 8:48 am

    Very good app

  • practical app
    by abdolreza.j on April 24, 2016 at 5:40 am

    Very good practical app

  • Excellent, with room for more improvement
    by alliouga on March 19, 2016 at 6:58 pm

    An excellent calculator at a perfect price! For further improvement, I would like to see opioid or morphine equivalent calculators, USPSTF preventive recommendations as well as or as an option instead of the Canadian ones, and illustrations to go with the Ottawa ankle and other rules. There are also some font issues - reading the information for the NAFLD score, for example, the “fi” character does not reproduce in some cases, and some of the mathematical symbols get mangled

  • Opiate conversion
    by Bobby 9-234 on March 18, 2016 at 5:43 pm

    Good app. Would be a better app if it also had calculations like opiate equivalence- which seems to be missing.

  • Very useful
    by Iftiahmad on March 17, 2016 at 4:07 am

    I use it all the time. Easy interface and quick to use. Very helpful app.

  • I love it
    by Grishkanich on March 15, 2016 at 12:39 pm

    Great thanks to developer ! P.S.: new design is awesome!

  • Excellent
    by DR DER on March 13, 2016 at 7:07 pm

    I use it everyday

  • Great app
    by Sanshot on March 9, 2016 at 10:26 am

    A must have app.

  • Great app! Needs updates
    by lights303 on February 24, 2016 at 9:07 pm

    Would be great if the new sepsis SOFA score were included!

  • Good
    by MrShootex on December 19, 2015 at 8:50 pm

    Though I think that every doctor should not need an app to make decisions but this is very useful for renewing knowledge.

  • Great one.
    by JPerkins1988 on December 15, 2015 at 2:25 pm

    I just can't believe that the high-quality app like this is free. It has perfect UI and it's easy to use. I wish that more people could experience this app.

  • wonderful app!
    by Sienne Determos on December 15, 2015 at 6:20 am

    It's very helpful and useful for medical universities' students

  • Useful and helpful
    by Chermnykhv on December 15, 2015 at 3:56 am

    I am increase how such an app can be so helpful and useful. There are a lot of information in the app. So if you work with the medicine you mast have "calculate".

  • Helpful
    by Karry1089 on December 14, 2015 at 1:45 pm

    I download this hoping it will help me with my medicine class and I love it a lot. I hope there will be more parts, hopefully with more advanced cases.

  • Helpful
    by Viking0309 on December 14, 2015 at 8:31 am

    This app is helpful.It's easy to use, easy to search and has explanations for the formulas and interpretations as well. I love the different options it has. Good work.

  • So helpful and informative
    by Cary Starr on December 14, 2015 at 8:13 am

    I'm surprised how such an app can be free. It is absolutely incredible

  • Great
    by Shatta youth on December 14, 2015 at 6:28 am

    Great app

  • Good
    by Wandy 2015 on December 14, 2015 at 3:45 am

    This definitely not for common use but if you know how to use it helps to understand when you need the professional doctor advices. My nephew is a medical specialist and he showed me how to use this.

  • Helpful!
    by dexser_ on December 13, 2015 at 3:47 pm

    It's very helpful app, also rather simple to use and understand

  • helping tool
    by JaneFreeman on December 13, 2015 at 11:14 am

    It was very useful to my mom. She is sick and needed an advise. And I'm sure, it will be helpdful to everyone who need any medical advise.

  • I'm glad I found it free
    by Elforija on December 13, 2015 at 11:01 am

    This is an extremely helpful tool for most of medical professionals, which is always at hand. I didn't find any bugs, works smoothly, very easy to use.

  • Great app
    by Alexander Jenko on December 12, 2015 at 7:56 pm

    My friends have show me this caculator application for a long time. First it's hard for me to use, but then it's very simple. This app is focus on highlighting tools which are very useful for clinical practice and exercise, serve to impact diagnosis, treatment and prognosis. It's helping you to make decision, not just calculate numbers. Someone who like clinic will love this app. Thank you the team for creating a wonderful application!!!

Change log

Update history of iPhone App [Calculate by QxMD]

In this version we continued fixing minor bugs, and enhanced the app’s performance.

Have questions or concerns? Send us an email at [email protected]
(c)QxMD Medical Software


iPhone App [Calculate by QxMD] Other details

  • Sales maker:
    QxMD Software Inc.
  • Release date:
  • Version:9.0
  • OS:iOS,iPhone,iPad
  • Price:Free


Download the[Calculate by QxMD]@iPhone App

Download the APP!
Calculate by QxMD|Download the iPhone APP from AppStore


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