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Roman Numeral Converter
Convert between Roman numerals and decimal numbers
MMXXIV
Roman Numeral Reference
I
1
V
5
X
10
L
50
C
100
D
500
M
1000
Roman numeral rules
- Symbols are added left to right (XVI = 16)
- Subtractive notation: smaller before larger subtracts (IV = 4)
- Maximum three of the same symbol in a row (III = 3)
- Valid range: 1 to 3,999
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Read the complete guide with examples and tips
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