9 in Roman Numerals

To write 9 in Roman numerals, you write IX.

Step-by-step breakdown

IX = 9 = 9

IX is a subtractive pair: I (1) before X (10) = 9. You'll see IX in contexts like Super Bowl IX or the ninth chapter of a book.

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What is 9 in Roman numerals?

9 in Roman numerals is IX.

How do you write 9 in Roman numerals?

Write IX. See the breakdown above for a step-by-step explanation of how each symbol contributes to the total value of 9.

What does IX mean in Roman numerals?

IX is the Roman numeral for 9.

Is IX a valid Roman numeral?

Yes. IX is a valid Roman numeral following standard subtractive notation rules. It equals 9 in decimal.