Need to convert 18 to Roman Numerals?
Simple! 18 is XVIII!

Convert 18 to Roman Numerals:

18 is XVIII in Roman Numerals

Explain how 18 is XVIII in Roman Numerals:

X (10) + V (5) + I (1) + I (1) + I (1) = 18
Want to understand this? See our Roman Numerals Guide!

A Roman Numeral Countdown Timer! Countdown from 18 Seconds (XVIII) to 0!