Writing a Year in Roman Numerals

The four-step method

Split the year into thousands, hundreds, tens and ones, convert each piece on its own, then write them in order from left to right. Take 2026:

2026 = 2000 + 0 + 20 + 6
2000 → MM
   0 → (nothing)
  20 → XX
   6 → VI
result → MMXXVI

Because the thousands of a year are always 1 or 2 in the modern era, the leftmost part is simply M or MM. Everything after it is the same hundreds-tens-ones routine used for any smaller number.

Recent and upcoming years

Memorable years from the past

The 1900s are worth a closer look because they all start MCM — that is 1000 + 900, with 900 written subtractively as CM. So 1984 is MCM + LXXX (80) + IV (4) = MCMLXXXIV. The year 1999, often mis-written, is MCMXCIX: 1000, then 900, then 90, then 9 — four separate place values, never a shortcut like MIM.

Why copyright dates use Roman numerals

For decades, film and television studios printed their release year in Roman numerals in the closing credits. The original reason was partly stylistic and partly practical: a casual viewer is far less likely to clock how old a programme is when the date reads MCMLXXVIII rather than 1978. The convention stuck, which is why you still see lines like © MMXXVI today. Converting them back is a quick way to date an old broadcast.

Tips for getting it right

• Always handle the thousands first; for any year you are likely to write, that is M or MM.
• Watch the 90s and 900s — they are subtractive (XC, CM), not LXXXX or DCCCC.
• Double-check by converting your answer back to a number; the converter does this round-trip instantly.
• For a tattoo or engraving, copy the canonical form the tool shows rather than hand-spacing the letters.