Year · 20th century
1966 in Roman numerals
1966 is written MCMLXVI
Type any other number or numeral below to convert it.
Above 3,999? Type the barred part in brackets, e.g. (IV)CC = 4,200.
How MCMLXVI is built
Roman numerals are written one decimal place at a time, largest first.
- Mthousands · 1M is 1,000.
- CMhundreds · 9C before M means 1,000 − 100 = 900. This saves writing DCCCC.
- LXtens · 6L (50) plus X (10) makes 60.
- VIones · 6V (5) plus I (1) makes 6.
1,000 + 900 + 60 + 6 = 1,966
The pair CM uses subtraction: a smaller letter before a larger one is taken away from it. Only six pairs work this way: IV, IX, XL, XC, CD and CM. More on subtraction
Mistakes to avoid
- Not MDCCCCLXVI (10 letters). That adds everything up without subtraction. The Romans sometimes wrote numbers this way, and clocks still show 4 as IIII, but today MCMLXVI (7 letters) is the standard.
1966 for a tattoo or engraving
- Shortened to two digits ('66), it's LXVI. Many date tattoos use this shorter form.
- MCMLXVI has 7 letters. 54 of the 201 years from 1900 to 2100 are longer.
- 1966 was not a leap year (365 days), and 1 January 1966 was a Saturday.
See MCMLXVI in tattoo lettering
MCMLXVI in ten open-source fonts, on your skin tone, ready to download or print as a stencil.
PNG downloads are 3000 px with a transparent background. SVG downloads keep the lettering as outlines, so they look the same in any app. All fonts are open source (SIL Open Font Licence) and free to use for tattoos and products. See the font credits.
Years around 1966
Within the 1960s, every year starts MCMLX (1,960).
Every year from 1962 to 1970 starts MCMLX (1,960); only the ending changes.
| Number | Roman numeral |
|---|---|
| 1962 | MCMLXII |
| 1963 | MCMLXIII |
| 1964 | MCMLXIV |
| 1965 | MCMLXV |
| 1966 | MCMLXVI |
| 1967 | MCMLXVII |
| 1968 | MCMLXVIII |
| 1969 | MCMLXIX |
| 1970 | MCMLXX |