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Roman numerals converter

The seven symbols

I1
V5
X10
L50
C100
D500
M1,000

Symbols are added from largest to smallest (VIII = 8). A smaller symbol before a larger one is taken away — only in six pairs: IV (4), IX (9), XL (40), XC (90), CD (400) and CM (900). No symbol is repeated more than three times in a row, so the largest standard numeral is MMMCMXCIX (3999).

Roman numerals 1 to 100

1I2II3III4IV5V6VI7VII8VIII9IX10X11XI12XII13XIII14XIV15XV16XVI17XVII18XVIII19XIX20XX21XXI22XXII23XXIII24XXIV25XXV26XXVI27XXVII28XXVIII29XXIX30XXX31XXXI32XXXII33XXXIII34XXXIV35XXXV36XXXVI37XXXVII38XXXVIII39XXXIX40XL41XLI42XLII43XLIII44XLIV45XLV46XLVI47XLVII48XLVIII49XLIX50L51LI52LII53LIII54LIV55LV56LVI57LVII58LVIII59LIX60LX61LXI62LXII63LXIII64LXIV65LXV66LXVI67LXVII68LXVIII69LXIX70LXX71LXXI72LXXII73LXXIII74LXXIV75LXXV76LXXVI77LXXVII78LXXVIII79LXXIX80LXXX81LXXXI82LXXXII83LXXXIII84LXXXIV85LXXXV86LXXXVI87LXXXVII88LXXXVIII89LXXXIX90XC91XCI92XCII93XCIII94XCIV95XCV96XCVI97XCVII98XCVIII99XCIX100C

Years in Roman numerals

2016MMXVI2017MMXVII2018MMXVIII2019MMXIX2020MMXX2021MMXXI2022MMXXII2023MMXXIII2024MMXXIV2025MMXXV2026MMXXVI2027MMXXVII2028MMXXVIII2029MMXXIX2030MMXXX2031MMXXXI2032MMXXXII2033MMXXXIII2034MMXXXIV2035MMXXXV2036MMXXXVI

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