Arabic → Roman
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Roman → Arabic
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Quick Reference
1 I
4 IV
5 V
9 IX
10 X
40 XL
50 L
90 XC
100 C
400 CD
500 D
900 CM
1000 M
4000 MV̄
5000 V̄
10000 X̄
Convert between Arabic numbers and Roman numerals. Supports 1 to 3,999,999 with overline notation.