18 in Italian
Nearby Italian Numbers
18 in Other Languages
About 18 in Italian
18 translates to diciotto. The ordinal form — used for rankings, dates, and sequences — is diciottesimo.
The number 18 is even. In Italian-speaking environments, 18 is the kind of number you'll hear and need to use regularly, from market prices to building floor numbers.
Building fluency with numbers like 18 in Italian pays dividends quickly. Numbers are among the first things you use in a new language — for shopping, directions, introductions, and understanding announcements.
Learning Numbers in Italian
What makes Italian numbers challenging
Italian numbers are mostly regular but the teen split (11-16 vs 17-19) and the vowel-dropping in compounds (ventuno not ventiuno, ventotto not ventiotto) create small traps. Phone numbers can be read either digit-by-digit or as groups of hundreds, and you never know which style someone will use. The varying grouping style means a single number might be read as "trecentoquarantasette" (347 as one word) or "tre-quattro-sette" (3-4-7).
Tips for learning Italian numbers
Master the teen split first: 11-16 end with -dici, but 17-19 start with dici-. Learn which vowels drop in compounds (before uno and otto). Practice recognizing numbers both digit-by-digit and as spoken groups, since Italians switch between styles freely. Italian numbers have a musical quality — the rhythm and melody of the language helps with memorization. Prices, train platform numbers, and addresses make great real-world practice.