Roman Numeral Converter
Convert numbers to Roman numerals and back, check the standard form, or write dates in Roman numerals.
MM = 2,000XX = 20VI = 6
The seven symbols
- I
- 1
- V
- 5
- X
- 10
- L
- 50
- C
- 100
- D
- 500
- M
- 1,000
A smaller symbol before a larger one is subtracted, only in six pairs: IV (4), IX (9), XL (40), XC (90), CD (400) and CM (900). A symbol repeats at most three times.
Roman Numeral Converter FAQ
How do you write 2026 in Roman numerals?
2026 is MMXXVI: MM for 2,000, XX for 20 and VI for 6.
Why is 4 written IV and not IIII?
Standard Roman numerals put a smaller symbol before a larger one to subtract it, and repeat a symbol at most three times. IIII appears on some clock faces, but IV is the standard form.
How do I write a date in Roman numerals?
Choose Date → Roman and type the date as DD.MM.YYYY. For example, 15.08.1947 becomes XV.VIII.MCMXLVII. You can use dots, spaces, slashes or dashes between the parts.
What is the largest Roman numeral?
In standard form, 3,999 (MMMCMXCIX). Larger numbers used special marks such as a bar over a letter, which this tool does not support.
Is anything I type sent to a server?
No. Conversion runs in your browser and nothing is uploaded.