Number to Roman
Convert standard numbers from 1 to 3999 using common Roman numeral notation.
Numbers, dates, inscriptions
Convert regular numbers to Roman numerals, validate Roman numeral text, and get a clear breakdown you can copy for schoolwork, writing, design, tattoos, clocks, or event dates.
MMXXVI equals 2026.
Roman numerals still show up in book chapters, movie credits, Super Bowl numbers, outlines, clocks, monuments, tattoos, and event dates. This converter keeps the rules visible instead of returning a mysterious string.
Convert standard numbers from 1 to 3999 using common Roman numeral notation.
Paste a Roman numeral and check whether it is valid before using it in a design or inscription.
Convert year values for anniversaries, titles, tattoos, certificates, and event materials.
The basic symbols are I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, and M = 1000.
Roman numerals use subtractive notation for some values. IV means one before five, so it equals 4.
IX means one before ten, so it equals 9. The same pattern appears in XL for 40 and XC for 90.
Standard Roman numerals do not include zero, so this converter starts at 1.
Standard Roman numerals usually avoid repeating M more than three times. Larger values need extended notation such as overlines.
Yes. Lowercase input is converted to uppercase before validation.