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Roman numerals

The numerals people look up most — 1 to 100, the years from 1900 to 2050 and the round numbers in between — each with the symbols it is built from. For any other value from 1 to 3,999, use the converter.

The seven symbols

SymbolValue
I1
V5
X10
L50
C100
D500
M1,000

The subtractive pairs

Only six are legal. Anything else — IL for 49, IC for 99 — is invalid, however logical it looks.

IV4
IX9
XL40
XC90
CD400
CM900

1 to 100

NumberNumeralBuilt from
1II
2IIII
3IIIIII
4IVIV
5VV
6VIV + I
7VIIV + II
8VIIIV + III
9IXIX
10XX
11XIX + I
12XIIX + II
13XIIIX + III
14XIVX + IV
15XVX + V
16XVIX + V + I
17XVIIX + V + II
18XVIIIX + V + III
19XIXX + IX
20XXXX
21XXIXX + I
22XXIIXX + II
23XXIIIXX + III
24XXIVXX + IV
25XXVXX + V
26XXVIXX + V + I
27XXVIIXX + V + II
28XXVIIIXX + V + III
29XXIXXX + IX
30XXXXXX
31XXXIXXX + I
32XXXIIXXX + II
33XXXIIIXXX + III
34XXXIVXXX + IV
35XXXVXXX + V
36XXXVIXXX + V + I
37XXXVIIXXX + V + II
38XXXVIIIXXX + V + III
39XXXIXXXX + IX
40XLXL
41XLIXL + I
42XLIIXL + II
43XLIIIXL + III
44XLIVXL + IV
45XLVXL + V
46XLVIXL + V + I
47XLVIIXL + V + II
48XLVIIIXL + V + III
49XLIXXL + IX
50LL
51LIL + I
52LIIL + II
53LIIIL + III
54LIVL + IV
55LVL + V
56LVIL + V + I
57LVIIL + V + II
58LVIIIL + V + III
59LIXL + IX
60LXL + X
61LXIL + X + I
62LXIIL + X + II
63LXIIIL + X + III
64LXIVL + X + IV
65LXVL + X + V
66LXVIL + X + V + I
67LXVIIL + X + V + II
68LXVIIIL + X + V + III
69LXIXL + X + IX
70LXXL + XX
71LXXIL + XX + I
72LXXIIL + XX + II
73LXXIIIL + XX + III
74LXXIVL + XX + IV
75LXXVL + XX + V
76LXXVIL + XX + V + I
77LXXVIIL + XX + V + II
78LXXVIIIL + XX + V + III
79LXXIXL + XX + IX
80LXXXL + XXX
81LXXXIL + XXX + I
82LXXXIIL + XXX + II
83LXXXIIIL + XXX + III
84LXXXIVL + XXX + IV
85LXXXVL + XXX + V
86LXXXVIL + XXX + V + I
87LXXXVIIL + XXX + V + II
88LXXXVIIIL + XXX + V + III
89LXXXIXL + XXX + IX
90XCXC
91XCIXC + I
92XCIIXC + II
93XCIIIXC + III
94XCIVXC + IV
95XCVXC + V
96XCVIXC + V + I
97XCVIIXC + V + II
98XCVIIIXC + V + III
99XCIXXC + IX
100CC

Years, 1900 to 2050

YearNumeralBuilt from
1900MCMM + CM
1901MCMIM + CM + I
1902MCMIIM + CM + II
1903MCMIIIM + CM + III
1904MCMIVM + CM + IV
1905MCMVM + CM + V
1906MCMVIM + CM + V + I
1907MCMVIIM + CM + V + II
1908MCMVIIIM + CM + V + III
1909MCMIXM + CM + IX
1910MCMXM + CM + X
1911MCMXIM + CM + X + I
1912MCMXIIM + CM + X + II
1913MCMXIIIM + CM + X + III
1914MCMXIVM + CM + X + IV
1915MCMXVM + CM + X + V
1916MCMXVIM + CM + X + V + I
1917MCMXVIIM + CM + X + V + II
1918MCMXVIIIM + CM + X + V + III
1919MCMXIXM + CM + X + IX
1920MCMXXM + CM + XX
1921MCMXXIM + CM + XX + I
1922MCMXXIIM + CM + XX + II
1923MCMXXIIIM + CM + XX + III
1924MCMXXIVM + CM + XX + IV
1925MCMXXVM + CM + XX + V
1926MCMXXVIM + CM + XX + V + I
1927MCMXXVIIM + CM + XX + V + II
1928MCMXXVIIIM + CM + XX + V + III
1929MCMXXIXM + CM + XX + IX
1930MCMXXXM + CM + XXX
1931MCMXXXIM + CM + XXX + I
1932MCMXXXIIM + CM + XXX + II
1933MCMXXXIIIM + CM + XXX + III
1934MCMXXXIVM + CM + XXX + IV
1935MCMXXXVM + CM + XXX + V
1936MCMXXXVIM + CM + XXX + V + I
1937MCMXXXVIIM + CM + XXX + V + II
1938MCMXXXVIIIM + CM + XXX + V + III
1939MCMXXXIXM + CM + XXX + IX
1940MCMXLM + CM + XL
1941MCMXLIM + CM + XL + I
1942MCMXLIIM + CM + XL + II
1943MCMXLIIIM + CM + XL + III
1944MCMXLIVM + CM + XL + IV
1945MCMXLVM + CM + XL + V
1946MCMXLVIM + CM + XL + V + I
1947MCMXLVIIM + CM + XL + V + II
1948MCMXLVIIIM + CM + XL + V + III
1949MCMXLIXM + CM + XL + IX
1950MCMLM + CM + L
1951MCMLIM + CM + L + I
1952MCMLIIM + CM + L + II
1953MCMLIIIM + CM + L + III
1954MCMLIVM + CM + L + IV
1955MCMLVM + CM + L + V
1956MCMLVIM + CM + L + V + I
1957MCMLVIIM + CM + L + V + II
1958MCMLVIIIM + CM + L + V + III
1959MCMLIXM + CM + L + IX
1960MCMLXM + CM + L + X
1961MCMLXIM + CM + L + X + I
1962MCMLXIIM + CM + L + X + II
1963MCMLXIIIM + CM + L + X + III
1964MCMLXIVM + CM + L + X + IV
1965MCMLXVM + CM + L + X + V
1966MCMLXVIM + CM + L + X + V + I
1967MCMLXVIIM + CM + L + X + V + II
1968MCMLXVIIIM + CM + L + X + V + III
1969MCMLXIXM + CM + L + X + IX
1970MCMLXXM + CM + L + XX
1971MCMLXXIM + CM + L + XX + I
1972MCMLXXIIM + CM + L + XX + II
1973MCMLXXIIIM + CM + L + XX + III
1974MCMLXXIVM + CM + L + XX + IV
1975MCMLXXVM + CM + L + XX + V
1976MCMLXXVIM + CM + L + XX + V + I
1977MCMLXXVIIM + CM + L + XX + V + II
1978MCMLXXVIIIM + CM + L + XX + V + III
1979MCMLXXIXM + CM + L + XX + IX
1980MCMLXXXM + CM + L + XXX
1981MCMLXXXIM + CM + L + XXX + I
1982MCMLXXXIIM + CM + L + XXX + II
1983MCMLXXXIIIM + CM + L + XXX + III
1984MCMLXXXIVM + CM + L + XXX + IV
1985MCMLXXXVM + CM + L + XXX + V
1986MCMLXXXVIM + CM + L + XXX + V + I
1987MCMLXXXVIIM + CM + L + XXX + V + II
1988MCMLXXXVIIIM + CM + L + XXX + V + III
1989MCMLXXXIXM + CM + L + XXX + IX
1990MCMXCM + CM + XC
1991MCMXCIM + CM + XC + I
1992MCMXCIIM + CM + XC + II
1993MCMXCIIIM + CM + XC + III
1994MCMXCIVM + CM + XC + IV
1995MCMXCVM + CM + XC + V
1996MCMXCVIM + CM + XC + V + I
1997MCMXCVIIM + CM + XC + V + II
1998MCMXCVIIIM + CM + XC + V + III
1999MCMXCIXM + CM + XC + IX
2000MMMM
2001MMIMM + I
2002MMIIMM + II
2003MMIIIMM + III
2004MMIVMM + IV
2005MMVMM + V
2006MMVIMM + V + I
2007MMVIIMM + V + II
2008MMVIIIMM + V + III
2009MMIXMM + IX
2010MMXMM + X
2011MMXIMM + X + I
2012MMXIIMM + X + II
2013MMXIIIMM + X + III
2014MMXIVMM + X + IV
2015MMXVMM + X + V
2016MMXVIMM + X + V + I
2017MMXVIIMM + X + V + II
2018MMXVIIIMM + X + V + III
2019MMXIXMM + X + IX
2020MMXXMM + XX
2021MMXXIMM + XX + I
2022MMXXIIMM + XX + II
2023MMXXIIIMM + XX + III
2024MMXXIVMM + XX + IV
2025MMXXVMM + XX + V
2026MMXXVIMM + XX + V + I
2027MMXXVIIMM + XX + V + II
2028MMXXVIIIMM + XX + V + III
2029MMXXIXMM + XX + IX
2030MMXXXMM + XXX
2031MMXXXIMM + XXX + I
2032MMXXXIIMM + XXX + II
2033MMXXXIIIMM + XXX + III
2034MMXXXIVMM + XXX + IV
2035MMXXXVMM + XXX + V
2036MMXXXVIMM + XXX + V + I
2037MMXXXVIIMM + XXX + V + II
2038MMXXXVIIIMM + XXX + V + III
2039MMXXXIXMM + XXX + IX
2040MMXLMM + XL
2041MMXLIMM + XL + I
2042MMXLIIMM + XL + II
2043MMXLIIIMM + XL + III
2044MMXLIVMM + XL + IV
2045MMXLVMM + XL + V
2046MMXLVIMM + XL + V + I
2047MMXLVIIMM + XL + V + II
2048MMXLVIIIMM + XL + V + III
2049MMXLIXMM + XL + IX
2050MMLMM + L

Other numbers

NumberNumeralBuilt from
110CXC + X
120CXXC + XX
130CXXXC + XXX
140CXLC + XL
150CLC + L
160CLXC + L + X
170CLXXC + L + XX
180CLXXXC + L + XXX
190CXCC + XC
200CCCC
210CCXCC + X
220CCXXCC + XX
230CCXXXCC + XXX
240CCXLCC + XL
250CCLCC + L
260CCLXCC + L + X
270CCLXXCC + L + XX
280CCLXXXCC + L + XXX
290CCXCCC + XC
300CCCCCC
310CCCXCCC + X
320CCCXXCCC + XX
330CCCXXXCCC + XXX
340CCCXLCCC + XL
350CCCLCCC + L
360CCCLXCCC + L + X
370CCCLXXCCC + L + XX
380CCCLXXXCCC + L + XXX
390CCCXCCCC + XC
400CDCD
410CDXCD + X
420CDXXCD + XX
430CDXXXCD + XXX
440CDXLCD + XL
450CDLCD + L
460CDLXCD + L + X
470CDLXXCD + L + XX
480CDLXXXCD + L + XXX
490CDXCCD + XC
500DD
550DLD + L
600DCD + C
650DCLD + C + L
700DCCD + CC
750DCCLD + CC + L
800DCCCD + CCC
850DCCCLD + CCC + L
900CMCM
950CMLCM + L
1,000MM
1,050MLM + L
1,066MLXVIM + L + X + V + I
1,100MCM + C
1,150MCLM + C + L
1,200MCCM + CC
1,250MCCLM + CC + L
1,300MCCCM + CCC
1,350MCCCLM + CCC + L
1,400MCDM + CD
1,450MCDLM + CD + L
1,492MCDXCIIM + CD + XC + II
1,500MDM + D
1,550MDLM + D + L
1,600MDCM + D + C
1,650MDCLM + D + C + L
1,700MDCCM + D + CC
1,750MDCCLM + D + CC + L
1,776MDCCLXXVIM + D + CC + L + XX + V + I
1,800MDCCCM + D + CCC
1,812MDCCCXIIM + D + CCC + X + II
1,850MDCCCLM + D + CCC + L
1,865MDCCCLXVM + D + CCC + L + X + V
2,500MMDMM + D
3,000MMMMMM
3,500MMMDMMM + D
3,999MMMCMXCIXMMM + CM + XC + IX