18 in Roman numerals

The number 18 is written in Roman numerals like this: XVIII

XVIII = 18

How to write 18 in Roman numerals

Split the number by place value and write each part in Roman numerals:

• 10 = X
• 8 = VIII

Put the parts together: X + VIII = XVIII.

Going the other way? See the Roman numeral XVIII.

Previous number

17 in Roman numerals: XVII

Next number

19 in Roman numerals: XIX

---

Calculate the conversion of any number and its equivalent in Roman numerals with our Roman numerals converter.