The number 2011 is written in Roman numerals like this: MMXI
MMXI = 2011
Split the number by place value and write each part in Roman numerals:
Put the parts together: MM + X + I = MMXI.
As a year, 2011 is written MMXI. You often see dates like this in film credits, on buildings and on monuments.
Going the other way? See the Roman numeral MMXI.
2012 in Roman numerals: MMXII
Calculate the conversion of any number and its equivalent in Roman numerals with our Roman numerals converter.