Romanoff

Convert Roman/Arabic Numbers

Free · Designed for iPad

Convert between Arabic numbers, Roman numbers, and Chinese/Japanese numbers on your iPad or iPhone! What year was the Roman year "LXIV"? How do you write 333 or 2013 in Roman numerals? What is 88,237 in Japanese or Chinese using the simple characters, or the formal "Banking/Financial" characters? Romanoff will show you as you type the numbers. SchwanSongs offers you an elegant Roman/Arabic/Oriental number converter, for free! * Convert any number between 0 and 39,999 for Roman numerals, or up to 99,999 for Chinese/Japanese numbers. * Easy to use… just type your Roman or Arabic number. * You can type Roman "guesses" and it converts them to the correct format for you. For example, if you type "IIII", it will convert it to 4 and print the more common prefix-notation "IV". I offer my deepest thanks to my helpful friends who helped me with each language: SylvainT (French), AmelyG (Spanish), BerndR & ClarkW (German), KonstantinB (Russian), HenrikD (Swedish), JiaLu & CatherineT (Chinese T/S), Kazuko & KayokoB (Japanese).

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Support for iOS 26, refreshed app icon

Version 1.5.1

The developer, Eduard Schwan, 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

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • VoiceOver

      • Voice Control

      • Larger Text

      • Dark Interface

      • Differentiate Without Colour Alone

      • Sufficient Contrast

      • Reduced Motion

    Information

    • Seller
      • Eduard Schwan
    • Size
      • 10.8 MB
    • 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 and 8 more
      • English, French, German, Japanese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese
    • Age Rating
      4+
    • Copyright
      • Copyright © 2025, SchwanSongs. All rights reserved.
  • Developer Website
  • Privacy Policy

    • More by Eduard Schwan

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