30 in Roman Numerals

The number 30 written in Roman numerals is XXX.

30
=
XXX

How XXX is built:

XX= 20
X= 10
XXX= 30
Reverse lookup

Looking up the other way? XXX in Arabic numbers is 30. Use the full converter to enter any Roman numeral:

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Frequently asked questions
What is 30 in Roman numerals?
30 in Roman numerals is XXX. It is built from XX (20) + X (10) = 30.
How do you write 30 in Roman numerals?
To write 30 in Roman numerals, identify the largest Roman symbols that fit: 20 = XX, 10 = X. Write them left to right: XXX.
What does XXX mean?
XXX is the Roman numeral for 30. The symbols represent: XX = 20, X = 10, which add up to 30.
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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