Roman Numeral Converter

Arabic ↔ Roman numeral conversion, supports 1 ~ 3999

Conversion

Arabic Number

Roman Numeral

Reference Table

Basic Symbols

Roman	Value
I	1
V	5
X	10
L	50
C	100
D	500
M	1000

Combination Rules

Roman	Value	Description
IV	4	5-1
IX	9	10-1
XL	40	50-10
XC	90	100-10
CD	400	500-100
CM	900	1000-100