gliesians

Roman Numeral Converter


Enter a whole decimal value between 1 and 4999 or a Roman number (upper case) from I to MMMMCMXCIX.

Roman Number
Decimal Number

A numeral appearing to the right of another numeral should have its value added to the first number (e.g., VI = 6).

If a numeral appears to the left of a higher numeral, its value should be subtracted from the value of that numeral (e.g., IV = 4).

Conversion Values
I1
V5
X10
L50
C100
D500
M1000