1999 in Roman numerals at a glance
- Roman numeral
- MCMXCIX
- Lowercase
- mcmxcix
- Letters
- 7
- Parts
- M · CM · XC · IX
- Subtractive pairs
- CM, XC, IX
- Read aloud
- nineteen ninety-nine
- Leap year?
- No
How MCMXCIX is built
Roman numerals are written one decimal place at a time, from the largest place to the smallest. Converting each digit of 1999 separately and joining the pieces gives MCMXCIX:
| Place | Digit | Value | Numeral |
|---|---|---|---|
| Thousands | 1 | 1,000 | M |
| Hundreds | 9 | 900 | CM |
| Tens | 9 | 90 | XC |
| Ones | 9 | 9 | IX |
Reading it back, left to right:
- M = 1,000 → running total 1,000
- CM = 900 (M minus C) → running total 1,900
- XC = 90 (C minus X) → running total 1,990
- IX = 9 (X minus I) → running total 1,999
Why MCMXCIX has 7 letters
Every year from 1900 to 1999 begins with MCM (1,900); the rest of MCMXCIX after MCM — XCIX — spells out 99. Of the 201 years from 1900 to 2100, 54 have a longer numeral and 101 a shorter one.
The rules MCMXCIX follows
- Largest to smallest. MCMXCIX uses the symbols M, C, X and I (7 characters in all), and the values never increase from left to right except inside a subtractive pair.
- Subtraction. CM (900), XC (90) and IX (9) are subtractive pairs: a smaller symbol in front of a larger one is taken away from it. Only six pairs are allowed — IV, IX, XL, XC, CD and CM — and MCMXCIX uses three of them.
- No repeats. Every symbol in MCMXCIX appears once in a row, which is why the numeral stays short.
Common mistakes when writing 1999
- MCMIC — wrong because I may only be placed before V and X, so “IC” is not a valid way to write 99; it has to be XCIX. The correct form is MCMXCIX.
- MIM — wrong because I may only be placed before V and X, so “IM” is not a valid way to write 999; it has to be CMXCIX. The correct form is MCMXCIX.
- MDCCCCXCIX — wrong because standard numerals never repeat a symbol four times; 900 is written CM. The correct form is MCMXCIX.
The year 1999 in Roman numerals: where it appears
- Film and TV credits. Copyright lines at the end of films and TV programs of the period commonly gave the year in numerals — a 1999 production might end with “Copyright MCMXCIX.”
- Championship numbering. The pro football championship played in early 1999 was game XXXIII (33), since the series began with game I in January 1967.
- On a calendar. 1999 was not a leap year (365 days), and January 1 fell on a Friday. A full date such as July 4, 1999 is often written VII · IV · MCMXCIX.
To turn a complete birth date or wedding date into numerals — with dots, dashes or spaces in US or day-first order — use the Roman numeral date converter.
Years around 1999 in Roman numerals
| Year | Roman numeral | Letters |
|---|---|---|
| 1994 | MCMXCIV | 7 |
| 1995 | MCMXCV | 6 |
| 1996 | MCMXCVI | 7 |
| 1997 | MCMXCVII | 8 |
| 1998 | MCMXCVIII | 9 |
| 1999 | MCMXCIX | 7 |
| 2000 | MM | 2 |
| 2001 | MMI | 3 |
| 2002 | MMII | 4 |
| 2003 | MMIII | 5 |
| 2004 | MMIV | 4 |
Frequently asked questions
How do you write 1999 in Roman numerals?
1999 is written MCMXCIX. Break it into M (1000), CM (900), XC (90), IX (9) and add the parts: 1000 + 900 + 90 + 9 = 1999.
Is MCMIC a correct way to write 1999?
No. MCMIC is wrong because I may only be placed before V and X, so “IC” is not a valid way to write 99; it has to be XCIX. The standard numeral for 1999 is MCMXCIX.
How do you say MCMXCIX?
Read the value, not the letters: MCMXCIX is the year 1999, said “nineteen ninety-nine.” Spelling out the letters one by one is only useful when checking a carving or engraving.
What year comes after MCMXCIX?
2000, written MM. The year before, 1998, is MCMXCVIII.