Il numero romano MCMLXIII nel sistema decimale vale: 1963.
MCMLXIII in latino si scrive mille nongenti sexaginta tres,
mentre in italiano millenovecentosessantatré.
MCMXLIV, MCMXLV, MCMXLVI, MCMXLVII, MCMXLVIII, MCMXLIX, MCML, MCMLI, MCMLII, MCMLIII, MCMLIV, MCMLV, MCMLVI, MCMLVII, MCMLVIII, MCMLIX, MCMLX, MCMLXI, MCMLXII, MCMLXIV, MCMLXV, MCMLXVI, MCMLXVII, MCMLXVIII, MCMLXIX, MCMLXX, MCMLXXI, MCMLXXII, MCMLXXIII, MCMLXXIV, MCMLXXV, MCMLXXVI, MCMLXXVII, MCMLXXVIII, MCMLXXIX, MCMLXXX, MCMLXXXI, MCMLXXXII