Roman Numerals and Converter
Convert, learn, date & clock
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Convert any number to Roman numerals instantly — perfect for tattoos, dates, years, homework and clock faces. Learn the rules, take a quiz, and copy with a single tap.
Roman Numerals is the complete, beautifully designed toolkit for reading, writing and understanding Roman numerals — whether you need a quick conversion, help with a tattoo, or a way to finally learn the rules.
CONVERT INSTANTLY
• Turn any number into Roman numerals, and any numeral back into a number — live, as you type.
• Full range from 1 all the way to 3,999,999 using authentic vinculum (overline) notation for large numbers.
• See exactly how each numeral breaks down, e.g. MCMXCIV = M + CM + XC + IV, with every additive and subtractive group explained.
• Copy any result with a single tap.
PERFECT FOR TATTOOS, DATES & GIFTS
• Convert a full date into Roman numerals — ideal for tattoos, rings, engravings and anniversary gifts.
• Turn birth years, wedding years and copyright dates into elegant numerals.
• Choose your own separators and day/month order.
LEARN & PRACTICE
• A clear, friendly guide to the seven symbols (I V X L C D M) and every rule — additive, subtractive, repetition and the vinculum.
• A short, accurate history of where Roman numerals came from.
• Test yourself with a built-in quiz across four difficulty levels and track your best streak.
HANDY TOOLS
• A Roman-numeral clock face, including the classic IIII convention watchmakers use.
• Add and subtract directly in Roman numerals, with the working shown step by step.
• A fully searchable reference chart — 1 to 100, tens, hundreds, thousands and notable years.
DESIGNED WITH CARE
• A premium, inscriptional look inspired by carved stone and gold.
• Light and dark mode, Dynamic Type and full VoiceOver support.
• Available in 24 languages.
• No account, no sign-up, no clutter.
Whether you are decoding a movie’s copyright year, planning a tattoo, helping with homework or just curious, Roman Numerals makes it effortless.
Download now and convert, learn and create with confidence.
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The developer, Alper Sumer Guc, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Alper Sumer Guc
- Size
- 2.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 18 more
- English, Arabic, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 deve.net