18 in Roman Numerals
The number 18 written in Roman numerals is XVIII.
18
=
XVIII
How XVIII is built:
X= 10
V= 5
II= 2
I= 1
XVIII= 18
Reverse lookup
Looking up the other way? XVIII in Arabic numbers is 18. Use the full converter to enter any Roman numeral:
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Frequently asked questions
- What is 18 in Roman numerals?
- 18 in Roman numerals is XVIII. It is built from X (10) + V (5) + II (2) + I (1) = 18.
- How do you write 18 in Roman numerals?
- To write 18 in Roman numerals, identify the largest Roman symbols that fit: 10 = X, 5 = V, 2 = II, 1 = I. Write them left to right: XVIII.
- What does XVIII mean?
- XVIII is the Roman numeral for 18. The symbols represent: X = 10, V = 5, II = 2, I = 1, which add up to 18.
- 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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