In Roman numerals dates converter (birth, wedding) year, month, day

Convert calendar dates into Roman numerals

Learn how to convert any calendar date (birthday, wedding, anniversary, celebration, today) to Roman numerals. Convert each date component separately, month (1 - 12), day (1 - 31) and year, as bare numbers:

1: Break the number (decompose it) into place value subgroups;

2: Convert each subgroup;

3: Wrap up the Roman numeral.

Latest calendar dates converted to Roman numerals

The set of Roman numerals used for writing calendar dates

  • 1 = I (one); 5 = V (five);

  • 10 = X (ten); 50 = L (fifty);

  • 100 = C (one hundred); 500 = D (five hundred);

  • 1,000 = M (one thousand);

  • (*) 5,000 = (V) (five thousand); (*) 10,000 = (X) (ten thousand) - for writing dates in the future;

Note 1: (*) Number was also written with a bar above or between two vertical bars. We prefer this kind of writing of larger numerals between brackets "()" since it's more accessible to computer users and on the other hand it avoids the confusion between the vertical bar "|" and the Roman numeral of "I" (I = one).

Note 2: (*) Romans did not use right from the beginning numbers larger than 3,999, so they initially had no representation for numbers like:

  • 5,000 = (V), 10,000 = (X), 50,000 = (L), 100,000 = (C), 500,000 = (D), or 1,000,000 = (M).

These larger numerals were added later to the system and various different notations were used for them, not necessarily the ones above.

For a long time, the maximum number that could be written using Roman numerals was:

  • MMMCMXCIX = 3,999.

Roman numerals reading rules, summary: