Convert From Roman Numerals

Need to decode a Roman numeral? This calculator will take a Roman numeral and turn it into an ordinary number. Write any Roman Numeral into the box and hit the button to convert.
Roman Numeral
Click here for the opposite calculation
MCMXCIX = 1999
Roman Numeral Symbols
Symbol Number
I 1
V 5
X 10
L 50
C 100
D 500
M 1,000
V 5,000
X 10,000
L 50,000
C 100,000
D 500,000
M 1,000,000
Learn more about Roman Numerals
Roman Numeral Conversion Table