Roman Numerals to Decimal Numbers Converter

Convert given roman numerals to its equivalent decimal (arabic) numbers.

Simply enter the roman value in the appropriate space below and click on the Convert button.

Here, refresh your memory:

These are the main Roman Numeral letter-numbers:

I	V	X	L	C	D	M
1	5	10	50	100	500	1000

Here are the ones (units):

I	II	III	IV	V	VI	VII	VIII	IX
1	2	3	4	5	6	7	8	9

Here are the tens:

X	XX	XXX	XL	L	LX	LXX	LXXX	XC
10	20	30	40	50	60	70	80	90

And here are the hundreds:

C	CC	CCC	CD	D	DC	DCC	DCCC	CM
100	200	300	400	500	600	700	800	900