Il numero romano MDCXVIII nel sistema decimale vale: 1618.
MDCXVIII in latino si scrive mille sescenti duodeviginti,
mentre in italiano milleseicentodiciotto.
MDXCIX, MDC, MDCI, MDCII, MDCIII, MDCIV, MDCV, MDCVI, MDCVII, MDCVIII, MDCIX, MDCX, MDCXI, MDCXII, MDCXIII, MDCXIV, MDCXV, MDCXVI, MDCXVII, MDCXIX, MDCXX, MDCXXI, MDCXXII, MDCXXIII, MDCXXIV, MDCXXV, MDCXXVI, MDCXXVII, MDCXXVIII, MDCXXIX, MDCXXX, MDCXXXI, MDCXXXII, MDCXXXIII, MDCXXXIV, MDCXXXV, MDCXXXVI, MDCXXXVII