1964 in Roman numerals at a glance
- Roman numeral
- MCMLXIV
- Lowercase
- mcmlxiv
- Letters
- 7
- Parts
- M · CM · L · X · IV
- Subtractive pairs
- CM, IV
- Read aloud
- nineteen sixty-four
- Leap year?
- Yes
How MCMLXIV is built
Roman numerals are written one decimal place at a time, from the largest place to the smallest. Converting each digit of 1964 separately and joining the pieces gives MCMLXIV:
| Place | Digit | Value | Numeral |
|---|---|---|---|
| Thousands | 1 | 1,000 | M |
| Hundreds | 9 | 900 | CM |
| Tens | 6 | 60 | LX |
| Ones | 4 | 4 | IV |
Reading it back, left to right:
- M = 1,000 → running total 1,000
- CM = 900 (M minus C) → running total 1,900
- L = 50 → running total 1,950
- X = 10 → running total 1,960
- IV = 4 (V minus I) → running total 1,964
Why MCMLXIV has 7 letters
Every year from 1900 to 1999 begins with MCM (1,900); the rest of MCMLXIV after MCM — LXIV — spells out 64. Of the 201 years from 1900 to 2100, 54 have a longer numeral and 101 a shorter one.
The rules MCMLXIV follows
- Largest to smallest. MCMLXIV uses the symbols M, C, L, X, I and V (7 characters in all), and the values never increase from left to right except inside a subtractive pair.
- Subtraction. CM (900) and IV (4) 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 MCMLXIV uses two of them.
- No repeats. Every symbol in MCMLXIV appears once in a row, which is why the numeral stays short.
Common mistakes when writing 1964
- MDCCCCLXIV — wrong because standard numerals never repeat a symbol four times; 900 is written CM. The correct form is MCMLXIV.
- MCMLXIIII — wrong because standard numerals never repeat a symbol four times; 4 is written IV. The correct form is MCMLXIV.
The year 1964 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 1964 production might end with “Copyright MCMLXIV.”
- An Olympiad year. 1964 is the year of the Games of the XVIII Olympiad — Tokyo.
- On a calendar. 1964 was a leap year, with 366 days, and January 1 fell on a Wednesday. A full date such as July 4, 1964 is often written VII · IV · MCMLXIV.
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 1964 in Roman numerals
| Year | Roman numeral | Letters |
|---|---|---|
| 1959 | MCMLIX | 6 |
| 1960 | MCMLX | 5 |
| 1961 | MCMLXI | 6 |
| 1962 | MCMLXII | 7 |
| 1963 | MCMLXIII | 8 |
| 1964 | MCMLXIV | 7 |
| 1965 | MCMLXV | 6 |
| 1966 | MCMLXVI | 7 |
| 1967 | MCMLXVII | 8 |
| 1968 | MCMLXVIII | 9 |
| 1969 | MCMLXIX | 7 |
Frequently asked questions
How do you write 1964 in Roman numerals?
1964 is written MCMLXIV. Break it into M (1000), CM (900), L (50), X (10), IV (4) and add the parts: 1000 + 900 + 50 + 10 + 4 = 1964.
Is MDCCCCLXIV a correct way to write 1964?
No. MDCCCCLXIV is wrong because standard numerals never repeat a symbol four times; 900 is written CM. The standard numeral for 1964 is MCMLXIV.
How do you say MCMLXIV?
Read the value, not the letters: MCMLXIV is the year 1964, said “nineteen sixty-four.” Spelling out the letters one by one is only useful when checking a carving or engraving.
What year comes after MCMLXIV?
1965, written MCMLXV. The year before, 1963, is MCMLXIII.