ARABIC
Returns the numeric value corresponding to a Roman number expressed as text.
The largest Roman number that can be converted is MMMCMXCIX (or one of its simplified versions), which is equivalent to 3999.
ARABIC(Text)
Text: text representing a Roman number.
=ARABIC("MXIV") returns the numeric value 1014.
=ARABIC("MMII") returns the numeric value 2002.
=ARABIC("") returns 0.