Date to Roman Numerals Converter: Write Calendar Dates in Roman Numerals. Write the Date of Important Events, Like Birthday, Wedding, Marriage, Graduation, Anniversary, Celebration, or the Current Day. Choose Your Date Format: Month, Day and Year

Convert calendar dates, write them in Roman numerals

Learn how to convert any calendar date (birthday, wedding, anniversary, celebration, the current day) to Roman numerals. Convert each date component separately, as if they were simple numbers: the month (it is a number between 1 and 12), the day (a number between 1 and 31) and the year (a numbers between 1 and 9999).

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

2: Convert each subgroup.

3: Wrap up (construct) the Roman numeral.

The latest calendar dates converted, written using Roman numerals

The calendar date Aug-08, 1570 converted, written using Roman numerals: VIII - VIII - MDLXXJul 13 11:30 UTC (GMT)
The calendar date Nov-09, 1560 converted, written using Roman numerals: XI - IX - MDLXJul 13 11:30 UTC (GMT)
The calendar date Dec-02, 1548 converted, written using Roman numerals: XII - II - MDXLVIIIJul 13 11:30 UTC (GMT)
The calendar date Nov-27, 1049 converted, written using Roman numerals: XI - XXVII - MXLIXJul 13 11:30 UTC (GMT)
The calendar date Dec-02, 1546 converted, written using Roman numerals: XII - II - MDXLVIJul 13 11:30 UTC (GMT)
The calendar date Aug-15, 1536 converted, written using Roman numerals: VIII - XV - MDXXXVIJul 13 11:30 UTC (GMT)
The calendar date Jan-20, 1536 converted, written using Roman numerals: I - XX - MDXXXVIJul 13 11:30 UTC (GMT)
The calendar date Nov-04, 1500 converted, written using Roman numerals: XI - IV - MDJul 13 11:30 UTC (GMT)
The calendar date Jun-13, 1440 converted, written using Roman numerals: VI - XIII - MCDXLJul 13 11:30 UTC (GMT)
The calendar date Apr-23, 1452 converted, written using Roman numerals: IV - XXIII - MCDLIIJul 13 11:30 UTC (GMT)
The calendar date Oct-08, 1438 converted, written using Roman numerals: X - VIII - MCDXXXVIIIJul 13 11:30 UTC (GMT)
The calendar date Jul-06, 1367 converted, written using Roman numerals: VII - VI - MCCCLXVIIJul 13 11:30 UTC (GMT)
The calendar date Aug-21, 1301 converted, written using Roman numerals: VIII - XXI - MCCCIJul 13 11:30 UTC (GMT)
All the calendar dates converted, written using the Roman numerals, online operations

The set of Roman numerals used for writing calendar dates

  • I = 1 (one); V = 5 (five);

  • X = 10 (ten); L = 50 (fifty);

  • C = 100 (one hundred);

  • D = 500 (five hundred);

  • M = 1,000 (one thousand);

    • For writing dates in the future:
    • (*) V = 5,000 or |V| = 5,000 (five thousand); see below why we prefer: (V) = 5,000.

    • (*) X = 10,000 or |X| = 10,000 (ten thousand); see below why we prefer: (X) = 10,000.

Note 1: (*) These numbers were written either with an overline (a bar above the number) or between two vertical lines (two vertical bars).

Note 2 (*) Instead we prefer to write these larger numerals between brackets "()" since: 1) when compared to the overline - it is more accessible to computer users; 2) when compared to the vertical line - it avoids any confusion between the vertical line "|" and the Roman numeral "I" (one).

  • So, (V) = 5,000 and (X) = 10,000.

Note 3: (*) Romans were not using 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. .