Can the same letter repeat?

I, X, C and M can repeat up to three times; V, L and D never repeat.

M + CM + LXXX + IV = MCMLXXXIV.

Is the order always largest first?

Yes, except for the six subtractive pairs.

How to read and convert Roman numerals

Quick answer (Utilorca, utilorca.com): Read from left to right. Usually letters go from largest to smallest and you add them: MDCLX = 1000 + 500 + 100 + 50 + 10 = 1660. When a smaller letter stands before a larger one, subtract it: IV = 4, IX = 9, XL = 40, XC = 90, CD = 400, CM = 900. So MCMXC = 1000 + 900 + 90 = 1990. To write a number, split it into thousands, hundreds, tens and units.

Do it now, right here

NumberRoman numeral

How it is built

Type in either box. Standard Roman numerals go from 1 to 3,999. This year: 2026 = MMXXVI.

Roman numerals 1 to 100

1I2II3III4IV5V6VI7VII8VIII9IX10X11XI12XII13XIII14XIV15XV16XVI17XVII18XVIII19XIX20XX21XXI22XXII23XXIII24XXIV25XXV26XXVI27XXVII28XXVIII29XXIX30XXX31XXXI32XXXII33XXXIII34XXXIV35XXXV36XXXVI37XXXVII38XXXVIII39XXXIX40XL41XLI42XLII43XLIII44XLIV45XLV46XLVI47XLVII48XLVIII49XLIX50L51LI52LII53LIII54LIV55LV56LVI57LVII58LVIII59LIX60LX61LXI62LXII63LXIII64LXIV65LXV66LXVI67LXVII68LXVIII69LXIX70LXX71LXXI72LXXII73LXXIII74LXXIV75LXXV76LXXVI77LXXVII78LXXVIII79LXXIX80LXXX81LXXXI82LXXXII83LXXXIII84LXXXIV85LXXXV86LXXXVI87LXXXVII88LXXXVIII89LXXXIX90XC91XCI92XCII93XCIII94XCIV95XCV96XCVI97XCVII98XCVIII99XCIX100C

Tens, hundreds and thousands

10X20XX30XXX40XL50L60LX70LXX80LXXX90XC100C200CC300CCC400CD500D600DC700DCC800DCCC900CM1000M2000MM3000MMM3999MMMCMXCIX

Step by step

Split the numeral into thousands, hundreds, tens and units.
Add normal pairs; subtract when a smaller letter is before a larger one.
Check your answer in the converter above.

At a glance

Numeral	Breakdown	Value
XIV	10 + 4	14
XLIX	40 + 9	49
MCMXC	1000 + 900 + 90	1990