How do you write 1980 in Roman numerals?

1980 is written MCMLXXX in Roman numerals: M (1,000) + CM (900) + LXXX (80).

How do you write '80 in Roman numerals?

The last two digits of 1980 are written LXXX.

Year · 20th century

1980 in Roman numerals

1980 is written MCMLXXX

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 MCMLXXX 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.
LXXXtens · 8L (50) plus XXX (30) makes 80.

1,000 + 900 + 80 = 1,980

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 MDCCCCLXXX (10 letters). That adds everything up without subtraction. The Romans sometimes wrote numbers this way, and clocks still show 4 as IIII, but today MCMLXXX (7 letters) is the standard.
There's no letter for zero. The zero is simply left out, which is why 1980 has 3 parts, not 4.

1980 for a tattoo or engraving

Shortened to two digits ('80), it's LXXX. Many date tattoos use this shorter form.
MCMLXXX has 7 letters. 54 of the 201 years from 1900 to 2100 are longer.
1980 was a leap year, with 366 days, and 1 January 1980 was a Tuesday.

Write a full date in 1980 Add it to a clock face

See MCMLXXX in tattoo lettering

MCMLXXX in ten open-source fonts, on your skin tone, ready to download or print as a stencil.

Years around 1980

Within the 1980s, every year starts MCMLXXX (1,980).

Every year from 1976 to 1984 starts MCMLXX (1,970); only the ending changes.

Number	Roman numeral
1976	MCMLXXVI
1977	MCMLXXVII
1978	MCMLXXVIII
1979	MCMLXXIX
1980	MCMLXXX
1981	MCMLXXXI
1982	MCMLXXXII
1983	MCMLXXXIII
1984	MCMLXXXIV