📝 Text & List
Number to Roman Numeral
Convert any number (1–3999) to Roman numerals instantly. Free.
The To Roman is a free online tool that helps you convert any number (1–3999) to roman numerals instantly. free It runs in your browser with no sign-up, downloads, or installation needed. All processing happens locally — your data stays on your device.
To Roman
Roman numeral reference
${[["I","1"],["IV","4"],["V","5"],["IX","9"],["X","10"],["XL","40"],["L","50"],["XC","90"],["C","100"],["CD","400"],["D","500"],["CM","900"],["M","1000"]].map(([r,n])=>`
${r}${n}
`).join("")}
How to use the To Roman
1
Roman numeral rules
Roman numerals use letters: I(1), V(5), X(10), L(50), C(100), D(500), M(1000). Subtractive notation: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900. Repeat up to 3 times (III=3, XXX=30, CCC=300, MMM=3000). Maximum standard value is 3999 (MMMCMXCIX).