Roman Numeral Date Converter

Convert dates and numbers to Roman numerals and back. Choose day/month or month/day order and a separator for dates, inscriptions and designs.

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ConversionDate picker (used when input is empty)Date orderSeparator

Dates · DD/MM/YYYY

Up to 200,000 characters. Processed locally.

Result

0 UTF-16 units

0Words

0Characters

0Without spaces

0Lines

How it works

Paste your content or load the example. Choose the available options, run the tool, then copy or download the result.

A practical example

Dates · DD/MM/YYYY

25/12/2000

Result

XXV/XII/MM

Frequently asked questions

Is my input sent to a server?

No. Your content is processed in this browser. It is never sent to the server or saved.

What should I know about Roman Numeral Date Converter?

Date mode accepts a date typed using the selected order or a date picker when input is empty. Reverse mode requires canonical Roman numerals and a real calendar date. Numbers and years range from 1 to 3999; zero and negative numbers have no representation here. The default order is day/month/year.