# AMA Impairment Calculator

> AMA Impairment Calculator (iPhone/iPad app by Paul Robbins.)

- Source: https://appshunter.io/ios/app/ama-impairment-calculator/id1570355679 (this page in markdown: same URL + `.md`)
- Developer: [Paul Robbins](https://appshunter.io/developer/642626308)
- Category: Medical, Utilities
- Price: Free
- Age rating: 17+
- Requires: iOS 14.0 · 0 MB
- Languages: English
- Released: 2021-06-02
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/ama-impairment-calculator/id1570355679/reviews.md

## What is AMA Impairment Calculator?

This is a specialist calculator for combining permanent impairments using the formula A+B(1-A), for the sole purpose of calculating medical reports based the The American Medical Association's AMA Guides to the Evaluation of Permanent Impairment.
WARNING! This app is of no use to anyone else.

Features:

Combine two or more imp% with the A+B(1-A) formula.
example 1: '33 ƒ(c) 21 =' 47 IMP%
example 2: '28 ƒ(c) 15% ƒ(c) 21 =' 52 IMP%

Add and then combine imp%.
example: '15 + 21 ƒ(c) 48 =' 67 IMP%

Subtract impairments, in the case of amputation and sensory loss of the same digit.

Calculates an IMP% through to whole person impairment for both the upper and lower extremities.
example: '47 WPI' displays, index finger 47% as hand = 9%, as upper extremity = 8%, as whole person = 5%
Option to view decimal or rounded values.

Calculate your own decimal percentage values with 'x', '%', '.' buttons.

Records calculations in a list, like a paper roll, as a reference to prior values.

WARNING! This app DOES NOT have a DIVIDE function, because it is not used in calculating impairment reports.

This App IS NOT associated with or endorsed by The American Medical Association. AMA Guides™ is a trademark of the American Medical Association.

Before using this App for medico legal purposes, the user should verify, through comparison with their own calculations, that the scope and accuracy available from the App is sufficient for their needs, including any additional requirements that may apply for their local jurisdiction.


## Version history (last 1 release)

### 1.0 — 2021-06-02

No release notes.

## Apps similar to AMA Impairment Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ArthrexVIP](https://appshunter.io/ios/app/arthrexvip/id1545445248) | 5.0 (6) | Free | Medical |
| [ASES 365](https://appshunter.io/ios/app/ases-365/id6478601365) | — | Free | Medical |
| [ExamWorks](https://appshunter.io/ios/app/examworks/id1437126109) | 4.5 (11) | Free | Medical |
| [MES Solutions](https://appshunter.io/ios/app/mes-solutions/id1633378964) | 5.0 (3) | Free | Medical |
| [AAOS Code-X Lite Web](https://appshunter.io/ios/app/aaos-code-x-lite-web/id1502942520) | 2.3 (3) | Free | Medical |
| [iSmartDM](https://appshunter.io/ios/app/ismartdm/id467340708) | 5.0 (1) | Free | Medical |

## More apps by Paul Robbins

- [Inch Converter](https://appshunter.io/ios/app/inch-converter/id642626305)
- [Picture Frame Calculator](https://appshunter.io/ios/app/picture-frame-calculator/id749560890)

All apps by Paul Robbins: https://appshunter.io/developer/642626308

---

*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 2026-05-17.*