Roman Numeral Chart

MATH TABLES

Roman numeral chart

A complete reference for Roman numerals: the seven basic symbols, the numbers 1 through 20, and the tens, hundreds, and thousands. Roman numerals combine letters by adding, with a smaller letter before a larger one meaning subtract.

The seven symbols

Symbol Value
I 1
V 5
X 10
L 50
C 100
D 500
M 1,000

Numbers 1 to 20

Number Roman numeral
1 I
2 II
3 III
4 IV
5 V
6 VI
7 VII
8 VIII
9 IX
10 X
11 XI
12 XII
13 XIII
14 XIV
15 XV
16 XVI
17 XVII
18 XVIII
19 XIX
20 XX

Tens, hundreds, and thousands

Number Roman numeral
10 X
20 XX
30 XXX
40 XL
50 L
60 LX
70 LXX
80 LXXX
90 XC
100 C
200 CC
300 CCC
400 CD
500 D
600 DC
700 DCC
800 DCCC
900 CM
1,000 M
2,000 MM
3,000 MMM

Roman numerals are read left to right, adding values, except when a smaller symbol sits before a larger one, which means subtract. So VI is 6 (5 plus 1) but IV is 4 (5 minus 1). The same logic gives IX for 9, XL for 40, and CM for 900.

Working with numbers?

See the Multiplication Table and other math references.

How Roman numerals work

Seven letters stand for fixed values, and you build numbers by stringing them together from largest to smallest, adding as you go. MMXXIV is 1000 plus 1000 plus 10 plus 10 plus 4, which is 2024. A symbol is never normally repeated more than three times in a row, which is where subtraction comes in.

Subtractive notation

To avoid four repeated symbols, a smaller value placed before a larger one is subtracted. So instead of IIII for 4, Roman numerals use IV, one before five. The same pattern gives IX for 9, XC for 90, and CD for 400. Only certain pairs are allowed: I before V or X, X before L or C, and C before D or M.

FAQ

What is 4 in Roman numerals?

IV. A smaller symbol (I) before a larger one (V) means subtract, so IV is 5 minus 1.

How do you write 2024 in Roman numerals?

MMXXIV, which is 1000 + 1000 + 10 + 10 + (5 minus 1).

Why is there no zero in Roman numerals?

The system was built for counting and had no symbol for nothing; the concept of zero as a numeral came later from other cultures.

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