Roman numerals 1 to 2000

Numbers that become years

One to two thousand is the chart where plain numbers start doubling as dates. Up to a thousand you are reading quantities: chapters, sums, list positions. From about 1500 onward almost every value you look up is really a year, a birth date, a founding, a cornerstone, and the demand shifts with it. This chart holds both halves in one table so a value can be checked either way.

The second thousand has its own rhythm. Every value from 1000 to 1999 opens with a single M, picks up its hundreds (MD for the 1500s band, MDCC for the 1700s, MCM for the 1900s), and closes with the familiar tens and units. At 2000 the table ends on MM, the two-letter numeral that opens every modern date.

The long numerals live here

This range contains the longest numerals in the whole system relative to their size. 1888 stretches to MDCCCLXXXVIII, thirteen characters, the longest year numeral of its millennium, while 2000 two rows before the end needs just two. Scanning the chart makes the reason plain: length tracks the digits, not the magnitude. An 8 anywhere costs four characters; a 0 costs none.

For reading practice, slice any row into place-value groups. MCMXLV is M (1000) + CM (900) + XL (40) + V (5): 1945. The groups always come in descending place order, so once the hundreds are found, the rest follows.

One chart for lookups in both directions

Use the chart forward to write a value, or backward to decode a numeral found in a book's front matter or on a monument. Rows for values with their own reference page link through to the full breakdown, including the two centuries of year pages from 1500 to 2099. For anything else, the row itself is the answer, and the converter above will spell it out on demand.