Roman Numeral Converter

Convert between numbers and Roman numerals (I, V, X, L, C, D, M)

Encoding & Escaping

Mode

Numbers (one per line)

Roman Numerals

Quick Reference

I = 1

V = 5

X = 10

L = 50

C = 100

D = 500

M = 1000

About Roman Numerals

• Range: This converter supports numbers from 1 to 3999
• Subtractive Notation: IV (4), IX (9), XL (40), XC (90), CD (400), CM (900)
• History: Used by ancient Romans and still used today for clock faces, book chapters, and movie sequels
• Rules: Symbols are arranged from largest to smallest, left to right
• Multiple Lines: Enter one number or roman numeral per line to convert multiple values

The Roman Numeral Converter tool bridges the ancient and modern numeric systems by converting between standard Arabic numbers and Roman numerals using I, V, X, L, C, D, and M symbols. Roman numerals have been used for centuries and appear in historical documents, clock faces, movie release dates, and architectural inscriptions. This tool is perfect for students, historians, and anyone needing to understand or work with this classical numbering system.