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Roman Numerals to Number

Roman Numerals to Number

Valid characters: I, V, X, L, C, D, M

Roman Numeral Reference

Basic Symbols

I1
V5
X10
L50
C100
D500
M1000

Subtractive Rules

IV4 (5-1)
IX9 (10-1)
XL40 (50-10)
XC90 (100-10)
CD400 (500-100)
CM900 (1000-100)

Common Examples

XIV14
XXIV24
XLIX49
XCIX99
CDXLIV444
MCMXC1990

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