Roman Numeral Converter

Convert Roman numerals to decimal and back

Convert

Decimal Number

Roman Numeral

Symbol Breakdown

M1,000

X10

IV4

2,024Result

Reference Chart

Symbol	Decimal Value
M	1,000
CM	900
D	500
CD	400
C	100
XC	90
L	50
XL	40
X	10
IX	9
V	5
IV	4
I	1

What is Roman Numeral Converter?

Convert between Roman numerals and decimal numbers instantly. Supports values from 1 to 3,999,999 with proper subtractive notation. See the breakdown of each Roman numeral symbol and learn the conversion rules.

How to use

Enter a decimal number (1–3999) or type a Roman numeral (e.g., MCMXCIV).
The conversion happens instantly — see the result and symbol breakdown.
Copy the converted value or view the reference chart for all Roman numeral symbols.

Result

Type 2024 → MMXXIV (M+M+X+X+IV). Type MCMXCIV → 1994 (M=1000, CM=900, XC=90, IV=4).

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