How to Read Roman Numerals

Master the ancient art of reading Roman numerals with our comprehensive step-by-step guide. From basic symbols to complex numbers, learn everything you need to know in just 15 minutes.

1
Learn the Basic Symbols

Start by memorizing the seven basic Roman numeral symbols and their values: I (1), V (5), X (10), L (50), C (100), D (500), M (1000). These are the building blocks of all Roman numerals.

I
1
V
5
X
10
L
50
C
100
D
500
M
1000
2
Understand the Addition Rule

When a smaller numeral appears after a larger one, add the values together. For example: VI = V + I = 5 + 1 = 6, or XIII = X + I + I + I = 10 + 1 + 1 + 1 = 13.

3
Master the Subtraction Rule

When a smaller numeral appears before a larger one, subtract the smaller from the larger. For example: IV = V - I = 5 - 1 = 4, or IX = X - I = 10 - 1 = 9.

4
Learn Subtractive Combinations

Memorize the six standard subtractive combinations: IV (4), IX (9), XL (40), XC (90), CD (400), and CM (900). These are the only valid subtractive forms.

IV
4
IX
9
XL
40
XC
90
CD
400
CM
900
5
Practice with Examples

Start with simple numbers and work your way up. Practice with common examples like XIV (14), XLII (42), MCMLIV (1954), and MMXXIV (2024).

6
Apply the Reading Strategy

Read from left to right, identifying symbols and applying addition/subtraction rules. Break complex numbers into recognizable chunks like MCM (1900) + L (50) + IV (4) = 1954.

Practice Examples

Test your understanding with these common Roman numerals

XIV
14
X + IV = 10 + 4
XLII
42
XL + II = 40 + 2
MCMLIV
1954
M + CM + L + IV = 1000 + 900 + 50 + 4
MMXXIV
2024
MM + XX + IV = 2000 + 20 + 4
CDXLIV
444
CD + XL + IV = 400 + 40 + 4
MCMXC
1990
M + CM + XC = 1000 + 900 + 90

Ready to Practice?

Use our free Roman numeral converter to practice reading and converting numbers. Test your skills with real-time feedback and validation.