CXXI in Roman Numerals

Here we will show you how to convert numeral CXXI to numbers.

First, note that Roman Numerals are divided into places just like numbers: ones, tens, hundreds, thousands and so on, as shown in the table below:

#
1
2
3
4
5
6
7
8
9

1000s
M
MM
MMM

100s
C
CC
CCC
CD
D
DC
DCC
DCCC
CM

10s
X
XX
XXX
XL
L
LX
LXX
LXXX
XC

1s
I
II
III
IV
V
VI
VII
VIII
IX

For each place, you have to identify that value. Here is CXXI color coded and separated, so you can see the different places and how it is constructed:

C XX I

Use the table above to find the value for each part of CXXI as follows:

0 1000s = 0
C = 1
XX = 2
I = 1

Then, simply line up the numbers above in the correct order to get the answer.

Thus, the answer to numeral CXXI converted to a decimal number is:

121

Roman Numerals to Numbers
Enter another Roman Numeral below to convert to decimal numbers:

CXXII in Roman Numerals
Here is the next numeral on our list that we have converted to decimal numbers.

The table we used to convert CXXI to decimal numbers will work for any Roman Numerals.

To learn how to read Roman Numerals such as CXXI in the future, we recommend that you convert a few more Roman Numerals above and then read our explanations for how we converted them.