Roman Numeral Converter
Convert any year, age or number to Roman numerals — and back. Free, offline, no ads.
Powered by the same logic as the app. Works offline, locally, in your browser.
What it does
A small, focused converter. Nothing more, nothing less.
Bidirectional
Type a number or a numeral — the app figures out which is which.
1 to 3999
Full classic Roman range. Handles every valid combination.
Light & dark
Matches your phone theme automatically. Easy on the eyes.
Offline forever
No internet needed. No accounts. No data leaves your device.
One-tap copy
Result copies to clipboard. Ready to paste anywhere.
History
Your last 10 conversions, kept locally so you can revisit them.
What people use it for
The same problem, in many shapes.
Roman numeral tattoos for birthdays, anniversaries, kids’ birth years.
Convert your wedding date for rings, invitations, decor.
Students learning the rules can practice and self-check answers.
Decode "Chapter XVIII" or "Episode IX" without thinking.
Render I–XII for watch faces and clock-build projects.
Engraved jewellery, photo frames, custom prints.
Roman numeral rules
In case you forgot. The app handles all of this so you don't have to memorize anything.
Contact
support@tools2apps.euDetails
Bundle ID:eu.tools2apps.roman_numerals Category: Tools / Education Age: 3+