Roman Numerals Reference 1 Basic Values I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000 2 Numbers 110 I, II, III, IV, V, VI, VII, VIII, IX, X 3 Numbers 1120 XI, XII, XIII, XIV, XV, XVI, XVII, XVIII, XIX, XX 4 Numbers 2140 XXI to XL, increasing by adding units to X and then moving toward L 50. 5 Numbers 4160 XLI to LX, with 50 represented as L and numbers built around it. 6 Numbers 6190 LXI to XC, combining L 50 with X multiples up to 90. 7 Numbers 91100 XCI to C, where C stands for 100. 8 Larger Values 200 = CC, 300 = CCC, 400 = CD, 500 = D, 600 = DC, 700 = DCC, 800 = DCCC, 900 = CM, 1000 = M 9 Extended Values 5000 and 10000 can be represented with special overlines or symbols, often written as V and X in historical notation. Practical Use Roman numerals are still applied in clocks, book chapters, film credits, monarch names, and Olympic games.