# Opioid Calculator > Calculates total oral Morphine Equivalent Daily Dose (oMEDD) for opioid combinations. (iPhone/iPad app by ANZCA.) - Source: https://appshunter.io/ios/app/opioid-calculator/id1039219870 (this page in markdown: same URL + `.md`) - Developer: [ANZCA](https://appshunter.io/developer/1039219869) - Category: Medical - Price: $0.99 - Rating: 3.70/5 from 9 App Store ratings · 16 written reviews indexed - Age rating: 17+ - Requires: iOS 16.6 · 3 MB - Languages: American English - Released: 2015-11-09 - Data updated: 2026-09-12 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/opioid-calculator/id1039219870/reviews.md ## What is Opioid Calculator? This Opioid Calculator Application is a tool for the calculation of total oral Morphine Equivalent Daily Dose (oMEDD). A particular design feature of the app is that it simplifies the calculation of oMEDD in cases where combinations of opioids are used. It is designed to provide easy accessibility and consistency to facilitate research, improve education and fill a void in the availability of reference conversion data in clinical practice. This opioid calculator is produced by the Faculty of Pain Medicine of the Australian and New Zealand College of Anaesthetists (FPM ANZCA) which is the peak body responsible for the education, training, continuing professional development and maintenance of standards of clinical practice for specialist pain medicine physicians in Australia and New Zealand. ## Key features - Calculate oral Morphine Equivalent Daily Dose (oMEDD) - Simplify calculations for combined opioids - Facilitate clinical practice - Support medical education - Aid research ## Chart rankings - #177 in Top Paid · Medical (US App Store) ## Recent user reviews (10 of 16) All indexed reviews: https://appshunter.io/ios/app/opioid-calculator/id1039219870/reviews.md ### 1/5 — Wrong conversion *2022-01-01* Tramadol to morphine is .1 not .2. ### 4/5 — Gut *2021-10-02* App ist nützlich und simpel gestaltet. Jedoch könnte man die Substanzen erweitern und auch alle Substanzen in alle konsumformen integrieren. Beispielsweise gibt es 9 optionen für die orale Einnahme, aber nur eine Option für die sublinguale Einnahme ### 2/5 — Mystery with current app *2019-12-29* The - + signs are not visible in the current app. Takes a bit of guess work to find the right place Increases inconvenience? ### 5/5 — Works well *2019-12-18* This works to calculate morphine equivalents ### 1/5 — Unable to use *2018-07-25* The scroll to accept conditions of use won’t let me accept conditions of use. Please fix this. ### 5/5 — Very useful app *2017-11-18* It is accurate and handy. Highly recommended for both young & experienced doctors. ### 5/5 — Useful but... *2016-08-17* Looks great. But no methadone conversion. Why? ### 5/5 — Excellent app *2016-05-20* So useful for everyone involved highly recommended ### 5/5 — Very useful *2016-02-16* Very helpful app from a trusted source. ### 5/5 — Smooth and Easy *2015-12-26* Great App. Easy to use. Invaluable in theatre for chronically opioid dependent patients. ## Frequently asked questions about Opioid Calculator ### What is the Opioid Calculator used for? The Opioid Calculator is a tool designed to calculate the total oral Morphine Equivalent Daily Dose (oMEDD), particularly when patients are using combinations of opioids. It aims to provide consistency and accessibility for clinical practice, education, and research. ### Who developed the Opioid Calculator? The Opioid Calculator is produced by the Faculty of Pain Medicine of the Australian and New Zealand College of Anaesthetists (FPM ANZCA). FPM ANZCA is the peak body responsible for education, training, and standards in specialist pain medicine in Australia and New Zealand. ### What is the price of the Opioid Calculator? The Opioid Calculator is a paid application, priced at $0.99. This one-time purchase grants access to its features. ### On which devices can I use the Opioid Calculator? The Opioid Calculator is supported on iPhones and iPads, making it accessible for users on Apple mobile devices. ### What is the age rating for the Opioid Calculator? The Opioid Calculator has an age rating of 17+, indicating it is intended for mature users due to its medical subject matter. ### How often is the Opioid Calculator updated? The Opioid Calculator was last updated to version 4.0.0 on November 17, 2025. This suggests regular updates to maintain its functionality and relevance. ### Does the Opioid Calculator have ads? No, the Opioid Calculator does not contain advertisements. As a paid application, it offers an ad-free experience for its users. ### What is the user rating for the Opioid Calculator? The Opioid Calculator has an average rating of 3.7 stars based on 9 user ratings. This feedback provides insight into user satisfaction with the application. ## Version history (last 5 releases) ### 4.0.0 — 2025-11-17 Contextual prompt / pop-up as the threshold of 40 mg/day is reached. Addition of a new tab in the info section will be added: Opioid Safety Resources NEW. Text updates to the following sections: - FPM position statement: PS01(PM): Use of opioid analgesics in chronic non-cancer pain - Guidelines for Opioid Analgesia: PM01 Appendix 1: Quick reference recommendations for conduct of an opioid trial in chronic non-cancer pain - Opioid Dose Equivalence - References User Interface refinements ### 3.5.1 — 2025-02-02 Refined internal Push notifications for the new version. ### 3.4.8 — 2025-01-29 Minor spelling fixes. Rebuilt to comply with the latest iOS. ### 3.3.1 — 2024-11-15 Stability improvement with the latest iOS ### 3.2.1 — 2023-09-19 Alert box when the maximum dosage of the opioid is reached. ## Apps similar to Opioid Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Opioid Conversion Calculator](https://appshunter.io/ios/app/opioid-conversion-calculator/id6446010375) | 3.7 (17) | Free | Medical | | [BenzoCalc](https://appshunter.io/ios/app/benzocalc/id6450026616) | — | Free | Medical | | [ASCAR](https://appshunter.io/ios/app/ascar/id1600414369) | — | Free | Medical | | [Mirus AN-ACC Calculator](https://appshunter.io/ios/app/mirus-an-acc-calculator/id528509738) | — | Free | Medical | | [Vetcalculators](https://appshunter.io/ios/app/vetcalculators/id1403466061) | 4.7 (606) | Free | Medical | | [Propofol Dreams](https://appshunter.io/ios/app/propofol-dreams/id1594015122) | — | Free | Medical | ## More apps by ANZCA - [ANZCA Events](https://appshunter.io/ios/app/anzca-events/id1207689877) - [ANZCA & FPM CPD](https://appshunter.io/ios/app/anzca-and-fpm-cpd/id6479286553) All apps by ANZCA: https://appshunter.io/developer/1039219869 ## Related topics [opioid calculator](https://appshunter.io/ios/topics/opioid-calculator) · [opioid](https://appshunter.io/ios/topics/opioid) · [opioid conversion calculator](https://appshunter.io/ios/topics/opioid-conversion-calculator) · [opioid conversion](https://appshunter.io/ios/topics/opioid-conversion) · [opioid tool](https://appshunter.io/ios/topics/opioid-tool) · [my opioid manager](https://appshunter.io/ios/topics/my-opioid-manager) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-12.*