Roman Numeral Converter
The Roman Numeral Converter translates ordinary numbers into Roman numerals and Roman numerals back into numbers, live as you type. It covers 1 through 3999 — handy for dates, clock faces, movie copyright years, outlines, tattoos, and homework.
Converts both ways between ordinary numbers and Roman numerals (I to MMMCMXCIX, i.e. 1–3999). Type in either box and the other updates instantly. Everything runs in your browser.
How This Tool Works
Type a number (1–3999) to see its Roman numeral, or type a Roman numeral to see the number. Both fields stay in sync and each has a one-click copy button.
Formula & Method
Roman numerals combine the symbols I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). Values are built largest-first, with subtractive pairs like IV (4) and IX (9) used where a smaller symbol precedes a larger one.
Example Calculation
Enter 2026 and you instantly get MMXXVI. Type IX in the Roman field and it shows 9.
Frequently Asked Questions
What range does it support?+
Standard Roman numerals cover 1 to 3999 (MMMCMXCIX). Numbers outside that range can’t be written with the classic seven symbols.
How do I write a year like 2026 in Roman numerals?+
Type 2026 into the Number field and you’ll get MMXXVI. It works for any year from 1 to 3999.
Is zero a Roman numeral?+
No — the Roman system has no symbol for zero, so the converter starts at 1.
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<a href="https://everyfix.net/tools/roman-numeral-converter/">Roman Numeral Converter</a> by <a href="https://everyfix.net">EveryFix</a>Related Tools
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