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2018 in Roman Numerals

2018 in Roman numerals is MMXVIII. It breaks down as MM + X + VIII, which adds up to 2000 + 10 + 8 = 2018.

  • Roman numeral
    MMXVIII
  • Lowercase
    mmxviii
  • Breakdown
    MM + X + VIII
  • In words
    two thousand eighteen
  • Binary
    11111100010
  • Hexadecimal
    7E2

How to write 2018 in Roman numerals

Roman numerals are built place by place, from the largest value to the smallest. For 2018 the places are 2000 (thousands), 10 (tens), 8 (ones).

  1. Write 2000 as MM.
  2. Write 10 as X.
  3. Write 8 as VIII.

Joined together, MM + X + VIII gives MMXVIII.

2018 digit by digit

PlaceValueNumeralRule used
thousands2000MMthe symbol repeated twice
tens10Xone symbol
ones8VIIIthe five symbol plus three

Check MMXVIII by reading it back

Reading MMXVIII from left to right and adding the pieces: MM = 2000, X = 10, VIII = 8. Together that is 2000 + 10 + 8 = 2018, so MMXVIII and 2018 match.

Mistakes to avoid with MMXVIII

  • Never repeat a symbol more than three times in a row. When a fourth would be needed, the subtractive form takes over.
  • Only I, X and C may be placed before a larger symbol to subtract, so MMXVIII never contains forms such as VX or LC.
  • Read MMXVIII as one number, not letter by letter: add the values left to right, except where a smaller symbol sits before a larger one.

Facts about the number 2018

  • 2018 is an even number and composite, with prime factors 2 x 1009.
  • In binary 2018 is 11111100010 and in hexadecimal it is 7E2.
  • Written out, 2018 is "two thousand eighteen".
  • The digits of 2018 add up to 11.
  • As a year, 2018 was a common year with 365 days and belongs to the 21st century.

Where you will see 2018 in Roman numerals

Architectural projects completed in 2018 sometimes feature MMXVIII on their cornerstone dedications. Builders select Roman numerals for these inscriptions because the letters offer a timeless visual quality that standard numbers lack on permanent stone surfaces.

Numbers near 2018

NumberRoman numeral
2016MMXVI
2017MMXVII
2018MMXVIII
2019MMXIX
2020MMXX

FAQ

What is 2018 in Roman numerals?

2018 is written MMXVIII in Roman numerals. It is built from MM (2000), X (10), VIII (8).

How do you write 2018 in lowercase Roman numerals?

Lowercase Roman numerals use the same rules, so 2018 is mmxviii. Lowercase is common for page numbers in a book's preface and for outline levels.

How do I convert any number to Roman numerals?

Split the number into thousands, hundreds, tens and ones, write each part with the symbols I, V, X, L, C, D and M, then join them from largest to smallest. Or paste it into the Roman numeral converter, which also converts back.

More roman numerals