1918 in Roman Numerals
1918 is MCMXVIII in Roman numerals. The numeral uses the subtractive rule, a smaller glyph placed before a larger one, which keeps MCMXVIII shorter than simply repeating symbols would.
How MCMXVIII is formed
M + CM + X + V + I + I + I = 1000 + 900 + 10 + 5 + 1 + 1 + 1 = 1918.
Where MCMXVIII is used
A year numeral turns up in different places from a bare number. These are the four that send people looking for MCMXVIII.
- Date tattoos and engravings. A year-only piece is just MCMXVIII, and a full date stacks the day and month above it. MCMXVIII is 8 characters long, which matters more than people expect: it sets how wide the bottom line of a stacked date will sit.
- Copyright lines in credits. Film and television end credits have long set the copyright year in Roman numerals, so a production from 1918 carries MCMXVIII on its end card. If you are reading a numeral off a title sequence rather than writing one, this is usually the one you have found.
- Cornerstones and dedications. Buildings, monuments and foundation stones carry their year in numerals, which is why MCMXVIII turns up carved rather than typed. Every year between 1900 and 1999 opens with MCM, so on a datestone it is the letters after MCM that tell you which year you are actually looking at.
- Anniversaries. In 2026, a date from 1918 is 108 years old, so MCMXVIII is the numeral for a 108th anniversary this year. Wedding and birth years are the two most common reasons to want MCMXVIII written correctly.
1918 in history
1918 is the year the First World War ended, marked each November on memorials that carry the year in Roman numerals.
Convert another year or number
1918 is written MCMXVIII in Roman numerals.
Frequently asked questions
How do you write the year 1918 in Roman numerals?
The year 1918 is written MCMXVIII. Reading left to right that is M (1000) + CM (900) + X (10) + V (5) + I (1) + I (1) + I (1), added together to reach 1918.
What happened in 1918?
1918 is the year the First World War ended, marked each November on memorials that carry the year in Roman numerals. Written as a Roman numeral, 1918 is MCMXVIII, which is the form you will see it carved or inked.
Why does MCMXVIII start with MCM?
MCM is the numeral for 1900, and every year from 1900 to 1999 opens with it. The letters after it, XVIII, carry the remaining 18.
How is the year 1918 different from the number 1918?
They share the numeral MCMXVIII, but the year page focuses on dates, tattoos and dedications, while the number covers counting, chapters and general use. Same letters, different context.
Years people look up next
The decade anchors either side of 1918, its immediate neighbours, and the quarter and half century marks that anniversaries land on.