How to convert a number to Roman numerals
- Type a whole number.
- Tick the overline option if the number is above 3,999.
- Copy the Roman numeral.
About this tool
Type a whole number and get its Roman numeral, such as 1994 as MCMXCIV. Standard numerals run from 1 to 3999 (MMMCMXCIX). A tick box switches on the overline form, where a bar over a letter means a thousand times its value, which extends the range to 3,999,999. There is no symbol for zero.
Common questions
How do I write 4 and 9?
4 is IV (one before five) and 9 is IX (one before ten). Roman numerals avoid writing a letter four times in a row.
Why does it stop at 3999?
Standard numerals have no symbol above M, and M can repeat only three times. Larger numbers use an overline.
Is there a Roman numeral for zero?
Not in the standard system. Romans had a word, nulla, but no symbol.
Is it free to use?
Yes. There's no sign-up, and you can use it as often as you like.
Is my text uploaded anywhere?
No. This tool runs inside your browser, so what you enter stays on your device.
Do I need to install anything?
No. It works in your browser on a computer or a phone.