Roman Date Converter
Convert any calendar date into day.month.year Roman numeral notation, or decode a Roman numeral date back into a regular calendar date.
Recommended Settings
Pro Tips
- •The format is day.month.year, each written as a Roman numeral and separated by periods - for example, December 25, 2024 becomes XXV.XII.MMXXIV
- •This is a fun novelty notation, not the authentic ancient Roman calendar, which used a very different system of kalends, nones, and ides
- •Edit either field - the calendar date or the Roman numeral date - and the other updates automatically
- •Popular for engravings, tattoos, and wedding invitations wanting a classical look
Most Popular
Most users convert a wedding date, birthday, or anniversary for an engraving or invitation
When to Use This Tool
Get a classical-looking Roman numeral version of a meaningful date.
Add a Roman numeral date for a formal or classical invitation design.
Practice converting numbers to and from Roman numerals using real dates.
Decode a Roman numeral date the way film studios sometimes stylize copyright years.
How It Works
Split the date into day, month, and year components
Convert each component independently into standard Roman numeral notation
Join them with periods, and support parsing the same notation back into a calendar date
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Client-side Roman numeral conversion algorithm for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
Is this how the ancient Romans actually wrote dates?
No, this is a modern novelty notation. The real ancient Roman calendar used a completely different system based on kalends, nones, and ides, and didn't write dates as day.month.year Roman numerals like this.
Why is the year sometimes very long, like MMXXIV?
Roman numerals don't have a compact way to represent large numbers, so years in the thousands naturally produce longer strings of numerals - MMXXIV, for example, is 2024.
Can I convert a date from centuries ago?
Yes, any positive year works, though very old or very future years will produce especially long Roman numeral strings.
Is my data sent to a server?
No. All conversion happens entirely in your browser.
What separator is used between day, month, and year?
A period (.) is used by convention here, matching how this style is most commonly seen in engravings and designs.