Roman Numeral Converter

Convert between Roman numerals and Arabic numbers. Validate Roman numeral format. Reference chart.

Arabic to Roman

Enter number (1-3999)

MMXXIV

Roman to Arabic

Enter Roman numeral

2024

Reference Chart

I= 1

V= 5

X= 10

L= 50

C= 100

D= 500

M= 1000

IV= 4

IX= 9

XL= 40

XC= 90

CD= 400

CM= 900

Quick Examples

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