1990 in Roman Numerals
1990 in Roman numerals is MCMXC. It is built from three parts: 1000 + 900 + 90 = M + CM + XC. Read it from left to right and add the values to get 1990. Below, 1990 appears in a date, on a copyright line and as a two-digit year.
1990 in Roman numerals is MCMXC.
1990 in Roman numerals: the breakdown
| Place value | Numeral | Value |
|---|---|---|
| 1000 | M | 1000 |
| 900 | CM | 900 |
| 90 | XC | 90 |
| Total | MCMXC | 1990 |
Why MCMXC and not MXM?
MCMXC uses the subtractive pairs CM and XC. Written by adding only, 1990 would be MDCCCCLXXXX, but a letter may repeat only three times in a row, and MDCCCCLXXXX repeats C four times. The shortcut MXM is also wrong: a smaller letter can be subtracted only from the next two larger letters: I before V or X, X before L or C, C before D or M.
How to read MCMXC
- M is 1000.
- CM is 1000 minus 100, which is 900.
- XC is 100 minus 10, which is 90.
- Add 1000 + 900 + 90 to get 1990.
Roman numeral 1990 in a date
| Order | 1 January 1990 | 31 December 1990 |
|---|---|---|
| MM.DD.YYYY | I.I.MCMXC | XII.XXXI.MCMXC |
| DD.MM.YYYY | I.I.MCMXC | XXXI.XII.MCMXC |
| YYYY.MM.DD | MCMXC.I.I | MCMXC.XII.XXXI |
For 1 January the first two orders match, because the day and the month are both I. For any other day, order or separator, use the Roman numeral date converter with 1990 filled in.
1990 on a copyright line
© MCMXC
Film and television end credits commonly show the copyright year in Roman numerals, so 1990 appears as © MCMXC.
1990 as a two-digit year
As a style choice, some people write only the last two digits of a year: ’90 gives XC for 1990. The full year, MCMXC, is the standard form.
Facts about 1990
- 1990 is not a leap year: it is not divisible by 4.
- 1990 has 365 days.
- 1 January 1990 falls on a Monday.
- 1990 is in the 1990s.
- 1990 is in the 20th century.
Years around 1990
Convert another year
1990 = 1000 + 900 + 90 = M + CM + XC
What number is MCMXC?
MCMXC is the year 1990. Reading it from left to right, M is 1000, CM is 900 and XC is 90, which adds up to 1990.
Questions and answers
What is 1990 in Roman numerals?
1990 in Roman numerals is MCMXC. It is made of three parts: 1000 + 900 + 90 = M + CM + XC. Read MCMXC from left to right, add the parts, and you get 1990. Use the converter on this page to check any other number from 1 to 3,999.
How do you write 1990 in Roman numerals?
Split 1990 into its place values, write each one in Roman numerals, and join them from largest to smallest. For 1990 that is 1000 + 900 + 90, which is M + CM + XC, so the answer is MCMXC. Check that no letter repeats more than three times in a row.
What number is MCMXC?
MCMXC is 1990. Read it in place-value parts from left to right: M is 1000, CM is 900, XC is 90. Add the parts to get 1990. Letters after a larger or equal letter are added, and a smaller letter before a larger one is subtracted. You can also type MCMXC into the converter to read the number back.
Why is 1990 written MCMXC and not MXM?
MCMXC is the standard form. MXM breaks a rule: a smaller letter can be subtracted only from the next two larger letters: I before V or X, X before L or C, C before D or M. Writing MCMXC keeps every letter within those limits and makes 1990 easy to read at a glance.
How do you write 1990 on a date in Roman numerals?
Convert the month, the day and the year separately and join them with dots. For 1 January 1990 in US order that is I.I.MCMXC, and for 31 December 1990 it is XII.XXXI.MCMXC. The date converter lets you choose the order, the separator and a two-digit year.