Roman numeral converter
Convert between integers and standard Roman numerals.
Formula
Use I, V, X, L, C, D, M with IV, IX, XL, XC, CD and CM.
How to use
- Enter an integer or Roman numeral.
- Use the range 1–3999.
- Read both forms.
Examples
- 2026 = MMXXVI; 49 = XLIX.
Frequently asked questions
How is 4 written?
IV; the smaller I before V means subtract 1.
Can I enter zero?
No. This notation supports integers from 1 to 3999.
Is IIII accepted?
No. This tool requires the standard subtractive form IV.
Sources
Updated: