Roman Numerals Converter
A Roman numeral converter translates between modern Arabic numerals and Roman numeral notation. Romans used letters I, V, X, L, C, D, and M to represent numbers.
- 1I=1, V=5, X=10, L=50, C=100, D=500, M=1000
- 2Subtract when smaller precedes larger: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900
- 3Add otherwise: VI=6, XI=11, LX=60
- 4No zero or fractions in Roman numerals
2026=MMXXVI (M+M+X+X+V+I = 1000+1000+10+10+5+1)
MCMXCIX=1,999 (M+CM+XC+IX = 1000+900+90+9)
| Symbol | Value |
|---|---|
| I | 1 |
| IV | 4 |
| V | 5 |
| IX | 9 |
| X | 10 |
| XL | 40 |
| L | 50 |
| XC | 90 |
| C | 100 |
| CD | 400 |
| D | 500 |
| CM | 900 |
| M | 1,000 |
References
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