Roman Numeral Conversion

Roman-Arabic Numeral Converter

$0.99 · Designed for iPad. Not verified for macOS.

This app provides a fast and simple method of converting Roman Numerals into ordinary Arabic numbers and vice versa. It includes a customized Roman Numeral keyboard with the 7 common Roman Numeral characters (M, D, C, L, X, V, and I) as well as 13 additional less-common characters that allow this app to handle larger numbers than most Roman Numeral Converters. Simple Roman Numeral conversion rules and the most common characters only support numbers up to 4,999. The expanded character set allows this app to support numbers up to 4,999,999. Although there are common conventions for writing numbers in Roman Numeral Convention, there is no formal standard for doing so. For example, the number 988 is commonly represented as CMLXXXVIII; however, IIXM is equally valid. This app utilizes an conversion algorithm that properly converts any Roman Numeral string containing any combination of the 20 characters supported by the app. We welcome your comments and suggestions for improvement of the app. You can send feedback to support@dohmann.com and if you like the app, please leave a review.

Ratings & Reviews

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User Interface Improvements.

Version 1.1

The developer, Dohmann Engineering Services, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Provider
    • Dohmann Engineering Services
    Size
    • 382 KB
    Category
    • Reference
    Compatibility
    Requires iOS 12.0 or later.
    • iPhone
      Requires iOS 12.0 or later.
    • iPad
      Requires iPadOS 12.0 or later.
    • iPod touch
      Requires iOS 12.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2021 Dohmann Engineering Services
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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