MDCalc Medical Calculator

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MDCalc Medical Calculator

MDCalc Medical Calculator

Join the millions of medical professionals who use MDCalc daily to support clinical decision making at the bedside. Since 2005, MDCalc has been the leading medical reference for the most relevant, up-to-date and widely-used clinical calculators that support evidence-based patient care. Registration is free and takes less than 30 seconds for full, unlimited access.

MDCalc clinical decision support is created exclusively by board-certified physicians for use by physicians, physician assistants, nurse practitioners, pharmacists, and medical students. The simple yet sleek app provides access to 550+ easy-to-use clinical decision tools including risk scores, algorithms, equations, formulas, classifications, dosing calculators, and more.

With a new enhancement, clinicians can now earn AMA PRA Category 1TM CME credits by simply reading the clinical content for 150+ calculators. The app will keep track of the CME credits earned in a personal dashboard, where users can also redeem credits for certificates and access their receipts for easy documentation. In order to redeem CME credits, users will need to sign up for a paid CME plan.

Unique features, ideal for the busy practicing clinician:

• Works offline and in limited connection settings. (CME tracking requires a connection.)
• Fast and easy search and filter to discover new calculators.
• Customizable lists for quick access: favorites, recently used, your specialty.
• Auto-syncing between the website and app.
• Quick toggle between US and SI units.
• Error warnings and normal values to help avoid mistakes and improper inputs.

Our exclusive “MDCalc Method” for selecting tools – including in-depth appraisal and validation of evidence AND clinical relevance – results in only the highest-quality tools to help you make better decisions and be more efficient in your workflow. And our network of academic and practicing physician experts create easy-to-digest content to reinforce decision making and support training:

• Insights and advice from the EBM creators (e.g. Dr. Phil Wells’ on the Wells’ Criteria).
• Expert content by specialists on use cases, pearls & pitfalls, results interpretation and more.
• Synopses of the evidence from the original and validation research.

From iMedicalApps in 2016: “The evidence based medicine (EBM) components of the medical app are what really set MDCalc apart from its peers… The MDCalc app gives brief summaries of the critical studies concerning the medical calculator, links to the studies on PubMed as well as “pearls/pitfalls”, “next steps” and expert commentary from the authors of the calculators.” – iMedicalApps “MDCalc app, the best online medical calculator is now an app”

MDCalc clinical decision tools support 35+ specialties including cardiology, critical care/ICU, emergency medicine, endocrinology, gastroenterology, hematology, hepatology, infectious disease, internal medicine, nephrology, neurology, obstetrics, oncology, orthopedics, pediatrics, primary care, psychiatry, pulmonology, surgery, urology, and more! Here are some examples of the tools:

* Calculators that include CME content

» Creatinine Clearance (Cockcroft-Gault Equation)
» CHA2DS2-VASc Score for Atrial Fibrillation Stroke Risk
» Calcium Correction for Hypoalbuminemia
» MELD Score (Model For End-Stage Liver Disease) (12 and older)
» HAS-BLED Score for Major Bleeding Risk
» CHADS2 Score for Atrial Fibrillation Stroke Risk
» HEART Score for Major Cardiac Events *
» SIRS, Sepsis, and Septic Shock Criteria *
» Fractional Excretion of Sodium (FENa)
» Mean Arterial Pressure (MAP) *
» Wells’ Criteria for Pulmonary Embolism *
» Wells’ Criteria for DVT



Download the[MDCalc Medical Calculator]@iPhone App

Download the APP!
MDCalc Medical Calculator|Download the iPhone APP from AppStore

Evaluation at the itunes store

Evaluation of iPhone App [MDCalc Medical Calculator] at itunes store

  • newest version:4.9 out of 5 stars (4.9 / 5)4.91432
  • All versions:4.9 out of 5 stars (4.9 / 5)4.91432

Number of people evaluated:39228



Screenshots of iPhone Apps [MDCalc Medical Calculator]

MDCalc Medical CalculatorScreenshot of 1MDCalc Medical CalculatorScreenshot of 2MDCalc Medical CalculatorScreenshot of 3MDCalc Medical CalculatorScreenshot of 4MDCalc Medical CalculatorScreenshot of 5
(c)MD Aware, LLC

People reviews

Impression and review of people to iPhone App [MDCalc Medical Calculator]!

  • Canadian Neurologic Scale missing (CNS)
    by lombardopalma on 2021-04-18 at 6:37 PM

    Missing Canadian Neurologic Scale (CNS) in your software Lombardo F Palma, MD, MSPH

  • User interface REALLY needs some work
    by jmdkl on 2021-04-11 at 5:52 PM

    Unfortunately the implementation of these web forms on the iPhone version is really bad. Makes it very hard to enter and delete entries, move the cursor, the keyboard gets in the way without intelligently scrolling often, etc. In short the UI is kind of a disaster despite the calculators being very useful.

  • Chadsvasc2
    by hurricane watcher on 2021-03-20 at 2:55 PM


  • Usability
    by JackoFly on 2021-02-27 at 2:52 PM

    Just a couple of frustrations after switching over from android to Apple. When putting in numbers and formulas The input boxes are very close to the drop-down boxes on the right and often when I put the number in and click in the drop-down box on accident. Also as I’m putting in numbers and I go to scroll to the next number the keyboard disappears and scrolling it’s very sluggish and frustrating. It is not smooth like it was an android. I appreciate your content and like the app, just a couple of suggestions after moving from android to Apple

  • Canadian neurologic Scale
    by Dr. LP1 on 2021-02-25 at 6:17 AM

    The CNS is a simpler and more practical neurological scale for stroke eval. Consider adding it to your magnificent MD tool kit. Dr. LP1

  • Problem fixed
    by Yatta123 on 2021-02-20 at 4:04 PM

    Besides the issue I had before with crashing, amazing app. Easy to use and very helpful for busy ER docs. Thanks.

  • Excellent app
    by bsanyang on 2020-09-30 at 4:36 AM

    But really needs to support landscape mode on the iPad, and to implement the copy to clipboard function of the website version.

  • Landscape mode broken
    by Blarrrghhh on 2020-09-13 at 7:57 PM

    Does not work in LandScape Mode. Please Fix. Otherwise would be very useful.

  • Messing up
    by Dr. BRy on 2020-08-23 at 4:25 AM

    The update completely messes with going through the calculators, there is no more next button to go to the next part to fill in, can’t fill in anything and then it kicks me back to a blank calculator. Please fix!

  • Awful
    by Aairzoom34 on 2020-08-22 at 12:20 AM

    Just not a good app

  • We need Spanish version
    by Evysante on 2020-08-06 at 10:37 PM

    This app is so useful and necessary, we really need a Spanish version.

  • Excellent medical app, but iPad version with huge shortcomings
    by VHouse28 on 2020-07-21 at 4:33 PM

    MDCalc is an excellent medical calculator, with updated literature citations and educational snippets. The iPhone version is stellar however the iPad version has several limitations in function that do not take advantage of the functionality of the iPad and it’s Pro-functionality. I work on the wards and am frequently using many of the calculations in the App on my new iPad Pro with the magic keyboard. This means I am in landscape mode throughout the day. Upon opening the app on landscape mode, the app does not rotate whatsoever. Meaning it cannot be used while the iPad is docked. The app also does not take advantage of the iPad OS’s multitasking features like split-view or slide-over, a huge detriment when I am charting on my virtual desktop app and looking to have MDCalc slide-over to briefly calculate a MELD score for example. The addition of these features to the iPad app would make this a 5/5 app. But until then, it’s unusable for the iPad Pro especially when it is on the Magic Keyboard.

  • Crashes
    by EMMDrw on 2020-07-14 at 3:06 PM

    Just reinstalled and still not working. Very frustrating as has been always one of my go-to apps

  • Screen control issues
    by stepheb7 on 2020-06-30 at 12:52 PM

    I used this app everyday prior to the update. Once it updated and I uninstalled and reinstalled, cursor doesn’t move from field to field in any logical manor. I am forever having to touch random areas of the screen to get to the next field. Not user friendly AT ALL.

  • Fixed after deleting and reinstalling
    by Lissaly on 2020-06-26 at 1:16 PM

    This is one of my favorite apps. I use it all the time for work, and it is definitely a lifesaver. It was having issues after the last update and was crashing upon opening, but after deleting and reinstalling the app, it now works perfectly. Thank you MDCalc team for your assistance!

  • It’s the best
    by JD from down south on 2020-06-24 at 9:00 PM

    Long time user. I used to have a ton of medical calculator apps on my phone. They’ve all been deleted except for this one.

  • Crashes repeatedly upon opening after latest update
    by TD2009 on 2020-06-23 at 8:09 PM

    Crashes immediately and repeatedly upon opening after latest this latest update. Please fix🙏🏾

  • wont open anymore since update
    by SGSSkysinger on 2020-06-23 at 1:43 PM

    wont open now. great

  • Crashing
    by Andrés zar on 2020-06-23 at 12:51 PM

    I’m a doctor, I always use this app, but it’s been crashing and won’t open since yesterday. Please help! 😩

  • Latest version
    by ejperryiv on 2020-06-22 at 11:13 PM

    Update: delete and re-install the app to get most recent update to work. Crashes with most recent OS

  • Doesn’t work anymore
    by HospPAc on 2020-06-22 at 8:53 PM

    Attempts to load and then closes. Non longer works. iPhone 7

  • Worked great until update...
    by jkbnp on 2020-06-22 at 6:10 PM

    By far one of the most helpful apps that I use for work—until the most recent update. Now crashes every time I try to open.

  • Crashes upon opening
    by An Avid River Rafter on 2020-06-22 at 3:47 PM

    Since the latest update this app is unusable as it crashes every time.

  • New update crashing app
    by dave77177 on 2020-06-22 at 12:33 PM

    Can’t open app anymore since new update. I have iPhone 7

  • App Crashing
    by Les Beatles on 2020-06-22 at 10:44 AM

    App crashes upon opening.

  • Latest version crashes
    by medicjon on 2020-06-20 at 2:41 AM

    Crashes on latest iOS

  • Very Helpful
    by Shobsonrn on 2020-06-10 at 2:04 PM

    I use it for the CHADvasc score and comes in pretty handy.

  • MDCalc Review
    by Big Lou911 on 2020-06-09 at 2:41 AM

    This app is continuously updated with useful formulas and information needed by anyone working in EMS, the ED or ICU. A must have!

  • please add oxygen content
    by Fastpanda29 on 2020-06-01 at 11:58 AM

    CaO2 (mL O2/dL) = (1.34 x hemoglobin concentration x SaO2) + (0.0031 x PaO2) where SaO2 is the arterial oxyhemoglobin saturation and PaO2 is the arterial oxygen tension. In dyshemoglobinemias, the oxygen content is calculated with the same equation, although the saturations (and therefore the oxygen content) will be different for a specific PaO2. Normal CaO2 is approximately 20 mL O2/dL.

  • An absolute must have on the wards.
    by Jdlmeier on 2020-05-18 at 10:02 PM

    Medical scores are very difficult to keep memorized completely when starting off in medicine. This is a great resource to have on the wards. Easy to use and a great way to improve patient care and improve diagnostic ability.

  • The best
    by diomar29 on 2020-04-26 at 12:58 PM

    The best app to do medical scores. It is really helpful in the day-a-day work.

  • One of the best for Wards and Residency
    by Enie Pica on 2020-04-21 at 9:43 PM

    Used this all the time on wards and in residency. Would highly recommend to have on your phone especially if you want to support your diagnosis on your assessment and plan.

  • Easy and helpful
    by Zielatlast on 2020-04-20 at 7:07 PM

    Really easy

  • Love it!
    by Dasanc831 on 2020-04-14 at 3:47 AM

    This is such a great app. It has every decision-making calculator possible, and the best part is you can save your favorite/most commonly used clinical calculators to quickly access them.

  • Stupendous
    by jadayjr on 2020-04-06 at 1:52 AM


  • Excellent app!
    by fltrnbg on 2020-04-03 at 2:57 PM

    I’m a Flight Nurse and use this ABN regularly.

  • Gi doc
    by democrat-gazette on 2020-03-24 at 12:27 AM

    Useful app with concise summary of commonly used tests

  • Medical student
    by Eric9273 on 2020-03-21 at 9:21 AM

    Must have for all medical student. Convenient function of starring commonly used calculators for quick access.

  • Use in FP
    by Dr. Ericksen on 2020-03-11 at 7:14 PM

    I use my app to access all my common assessments. It is great to have all in one easy accessible place. I also love the fact that with one click I see clinical evidence and know how to score it.

  • Great resource!
    by Cassnow on 2020-03-11 at 6:45 PM

    Seems to have pretty much everything if you know what to look for.

  • Overall good
    by nephrolover on 2020-03-09 at 3:03 AM

    Hope you add more items

    by jeffriorden on 2020-02-29 at 3:04 PM

    This is a great app for quick reference!

  • Dr.J Dunn, IM IN
    by maddocinin on 2020-02-10 at 10:44 PM

    MELD has been helpful in pt. w/ PBC. Need to transfer for transplant related w/u. Numbers have been helpful here & transplant ctr. Other testing scores have been beneficial, but not to the same extent. Overall a good app.

  • Amazing
    by MoeSelb on 2020-01-13 at 3:45 PM

    Absolutely amazing app! Can’t live without it at work. ED doc here and this is a must have for anyone on the field👍🏿

  • Must have
    by Mb6016 on 2019-12-13 at 7:58 PM

    Easy to use

  • Great! Just needs alveolar gas equation
    by iRunsALot on 2019-12-12 at 3:51 AM

    Great app! Please add alveolar gas equation.

  • New provider
    by ralphnaedar on 2019-12-01 at 4:18 PM

    Wonderful and easy to access. I recommend using regularly to become familiar. Improves base knowledge and eases with difficult decisions like pediatric head trauma. Good to documentation.

  • Great
    by Cooldude 47 on 2019-11-15 at 4:17 PM

    Came in hand for decision documenting

  • QTc calculator
    by CHSRN on 2019-11-05 at 11:46 AM

    I could not see the toggle option for the longest time. It seems odd to have “number of boxes” as the default, or even as an option.

  • Great calculator
    by I_Love_Dogs!!! on 2019-11-04 at 12:22 AM

    Love it. Almost an NP. Enjoying the app. Thank you

Change log

Update history of iPhone App [MDCalc Medical Calculator]

Now you can earn and redeem CME! Access the CME dashboard to sign up for a CME plan or if you are already subscribed, track and redeem CME earned.
(c)MD Aware, LLC


iPhone App [MDCalc Medical Calculator] Other details

  • Sales maker:
    MD Aware LLC
  • Release date:
  • Version:3.0.6
  • Price:Free


Download the[MDCalc Medical Calculator]@iPhone App

Download the APP!
MDCalc Medical Calculator|Download the iPhone APP from AppStore


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