Roman Numerals Converter
Convert between Roman numerals and decimal numbers
1
5
10
50
100
500
1000
Roman Numeral Reference
I=1
V=5
X=10
L=50
C=100
D=500
M=1000
Rules
- Roman numerals range from 1 to 3,999 (I to MMMCMXCIX)
- Numerals are generally written largest to smallest from left to right
- When a smaller numeral precedes a larger one, it is subtracted (e.g., IV = 4)
- A numeral cannot be repeated more than three times in a row
Examples
| Roman | Decimal | Explanation |
|---|---|---|
| MCMXCIV | 1994 | M=1000, CM=900, XC=90, IV=4 |
| CDXLIV | 444 | CD=400, XL=40, IV=4 |
| MMXXIII | 2023 | MM=2000, X=10, X=10, III=3 |
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