เลขโรมัน

I  =  ๑
II = ๒
III = ๓
IV = ๔
V = ๕
VI = ๖
VII = ๗
VIII = ๘
IX = ๙
X = ๑๐
XI = ๑๑
XII = ๑๒
XIII = ๑๓
XIV = ๑๔
XV = ๑๕
XVI = ๑๖
XVII = ๑๗
XVIII = ๑๘
XIX  =  ๑๙
XX =  ๒๐

XXX =  ๓๐
XL =  ๔๐
L = ๕๐
LX = ๖๐
LXX = ๗๐
LXXX = ๘๐
XC = ๙๐
C = ๑๐๐
CC = ๒๐๐
CCC = ๓๐๐
CD = ๔๐๐
D = ๕๐๐
DC = ๖๐๐
DCC = ๗๐๐
DCCC = ๘๐๐
CM = ๙๐๐
M = ๑,๐๐๐
MM = ๒,๐๐๐