About the Roman Numeral Converter
Convert a number from 1 to 3999 into Roman numerals. This tool is free, works in your browser and needs no sign-up.
How to use the Roman Numeral Converter
Enter a whole number between 1 and 3999.
Formula used
Roman numerals add the values I = 1, V = 5, X = 10, L = 50, C = 100, D = 500 and M = 1000. A smaller symbol before a bigger one is subtracted.
Example
With Number (1–3999) 2026, the calculator shows: Roman numeral = MMXXVI.
Frequently asked questions
Is the Roman Numeral Converter free to use?
Yes. It is completely free and you can use it as many times as you like.
How accurate is the Roman Numeral Converter?
The calculator uses standard formulas, so the maths is exact. Real life results can differ because of fees, taxes, rounding or personal factors, so treat the answer as an estimate.
Do you store the numbers I enter?
No. All calculations run in your browser. The values you type are not sent to our server.
Disclaimer: results are estimates for information only. They are not financial, medical or professional advice.