Cataloging & Serials: General

Roman Numerals

The following table shows the formation of roman numerals with their arabic equivalents. The general principle is that a smaller letter before a large one adds to it; a bar over a letter multiplies its value by one thousand. Roman numerals may also be written in lower case (i, ii, iii iv, etc.).

• Roman numeral date conversion page
• Roman numeral converter

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  Arabic	Roman	Arabic	Roman	Arabic	Roman
  1	I	16	XVI	90	XC
  2	II	17	XVII	100	C
  3	III	18	XVIII	200	CC
  4	IV	19	XIX	300	CCC
  5	V	20	XX	400	CD
  6	VI	21	XXI	500	D
  7	VII	22	XXII	600	DC
  8	VIII	23	XXIII	700	DCC
  9	IX	24	XXIV	800	DCCC
  10	X	30	XXX	900	CM
  11	XI	40	XL	1,000	M
  12	XII	50	L	2,000	MM
  13	XIII	60	LX	3,000	MMM
  14	XIV	70	LXX	4,000	MV
  15	XV	80	LXXX	5,000	V