Convert Roman Numeral IX to Number | Roman Numerals Calculator

Convert Roman numeral IX to number. IX = 9 in decimal numbers. Free online Roman numeral converter with explanation.

IX = 9

in decimal numbers

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Roman Numeral Table

M1000
CM900
D500
CD400
C100
XC90
L50
XL40
X10
IX9
V5
IV4
I1

How to Convert IX to Number

Step 1: IX = 9

Running total: 9

Related Roman Numerals

I
1
V
5
X
10
L
50
C
100
D
500
M
1000

Roman Numeral Rules

Basic Symbols

I (1), V (5), X (10), L (50), C (100), D (500), M (1000)

Subtractive Notation

When a smaller numeral appears before a larger one, subtract the smaller value (e.g., IV = 4, IX = 9, XL = 40)

Repetition Rules

Symbols I, X, C, and M can be repeated up to three times. V, L, and D cannot be repeated.

About this Calculator

Convert Roman numeral IX to number. IX = 9 in decimal numbers. Free online Roman numeral converter with explanation.

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