2017 in Roman Numerals
2017 is written MMXVII in Roman numerals, 9 years in the past. Reading left to right, M + M + X + V + I + I add up to 2017, which is exactly why Roman-numeral years suit tattoos and dedications: the letters carry the date without a single Arabic digit.
How MMXVII is formed
M + M + X + V + I + I = 1000 + 1000 + 10 + 5 + 1 + 1 = 2017.
Where MMXVII is used
A year numeral turns up in different places from a bare number. These are the four that send people looking for MMXVII.
- Date tattoos and engravings. A year-only piece is just MMXVII, and a full date stacks the day and month above it. MMXVII is 6 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 2017 carries MMXVII 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 MMXVII turns up carved rather than typed. Every year between 2000 and 2099 opens with MM, so on a datestone it is the letters after MM that tell you which year you are actually looking at.
- Anniversaries. In 2026, a date from 2017 is 9 years old, so MMXVII is the numeral for a 9th anniversary this year. Wedding and birth years are the two most common reasons to want MMXVII written correctly.
Convert another year or number
2017 is written MMXVII in Roman numerals.
Frequently asked questions
How do you write the year 2017 in Roman numerals?
The year 2017 is written MMXVII. Reading left to right that is M (1000) + M (1000) + X (10) + V (5) + I (1) + I (1), added together to reach 2017.
Why does MMXVII start with MM?
MM is the numeral for 2000, and every year from 2000 to 2099 opens with it. The letters after it, XVII, carry the remaining 17.
Is MMXVII the same as 2017 on a clock?
No. Clock faces only run to XII, so a year never appears on a dial. MMXVII belongs on dates: credits, cornerstones, engravings and tattoos. A numeral read off a watch face is an hour between I and XII, not a year.
How is the year 2017 different from the number 2017?
They share the numeral MMXVII, 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 2017, its immediate neighbours, and the quarter and half century marks that anniversaries land on.