Roman Numerals - Ancient Rome - Roman Numbers
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Roman Numerals

The Romans used several different systems for writing numbers. Sometimes they wrote numbers like this: I II III IV V and other times they used the Greek numbers. Roman people didn't always write numbers the same way, either - people knew what you meant even if you did it a little differently. Here's a table showing all of the Roman numerals.

I
1
                   
L
50
II
2

C
100
III
3

D
500
IV (or IIII)
4

M
1000
V
5



VI
6



VII
7



VIII
8



IX (or VIIII)
9



X
10



So MMIII is 2003, and XXIV is 24, and CLVII is 157. (Putting a bigger number like V after a smaller number like I means "1 less than 5" or 4).

Try writing these numbers in Roman numbers (see the second page for the answers):

314

26

1975

2010

Bibliography and further reading about Roman numbers:

Indian numbers
More about Roman Numbers
Roman Science
Ancient Rome
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Professor Carr

Karen Eva Carr, PhD.
Assoc. Professor Emerita, History
Portland State University

Professor Carr holds a B.A. with high honors from Cornell University in classics and archaeology, and her M.A. and PhD. from the University of Michigan in Classical Art and Archaeology. She has excavated in Scotland, Cyprus, Greece, Israel, and Tunisia, and she has been teaching history to university students for a very long time.

Professor Carr's PSU page

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