509 in Roman Numerals

The number 509 written in Roman numerals is DIX.

509
=
DIX

How DIX is built:

D= 500
IX= 9
DIX= 509
Reverse lookup

Looking up the other way? DIX in Arabic numbers is 509. Use the full converter to enter any Roman numeral:

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Frequently asked questions
What is 509 in Roman numerals?
509 in Roman numerals is DIX. It is built from D (500) + IX (9) = 509.
How do you write 509 in Roman numerals?
To write 509 in Roman numerals, identify the largest Roman symbols that fit: 500 = D, 9 = IX. Write them left to right: DIX.
What does DIX mean?
DIX is the Roman numeral for 509. The symbols represent: D = 500, IX = 9, which add up to 509.
What is the range of Roman numerals?
Standard Roman numerals cover 1 to 3,999 (I to MMMCMXCIX). Numbers outside this range cannot be represented with the classic seven symbols: I, V, X, L, C, D, M.
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