In Roman numerals dates converter (birth, wedding) year, month, day. Learn how to convert any calendar date (birthday, wedding, anniversary, celebration, current day) to Roman numerals.

Convert calendar dates into Roman numerals

Learn how to convert any calendar date (birthday, wedding, anniversary, celebration, current day) 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

May-23, 2007 = V - XXIII - MMVIIApr 04 12:44 UTC (GMT)
Dec-02, 16 = XII - II - XVIApr 04 12:44 UTC (GMT)
Apr-17, 18 = IV - XVII - XVIIIApr 04 12:44 UTC (GMT)
Dec-25, 5000 = XII - XXV - (V)Apr 04 12:44 UTC (GMT)
Nov-30, 1991 = XI - XXX - MCMXCIApr 04 12:44 UTC (GMT)
Dec-25, 2010 = XII - XXV - MMXApr 04 12:44 UTC (GMT)
Jan-14, 2020 = I - XIV - MMXXApr 04 12:44 UTC (GMT)
Apr-15, 346 = IV - XV - CCCXLVIApr 04 12:44 UTC (GMT)
Apr-19, 2019 = IV - XIX - MMXIXApr 04 12:44 UTC (GMT)
Dec-15, 2019 = XII - XV - MMXIXApr 04 12:44 UTC (GMT)
Sep-22, 2007 = IX - XXII - MMVIIApr 04 12:44 UTC (GMT)
Mar-30, 2020 = III - XXX - MMXXApr 04 12:44 UTC (GMT)
Nov-17, 2012 = XI - XVII - MMXIIApr 04 12:43 UTC (GMT)
converted dates, see more...

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. .

Roman numerals reading rules, summary:

I. The Roman numerals set of basic symbols

II. The rule of numerals repetition

III. Subtractive notation of the Roman numerals

IV. Additive notation of the Roman numerals


How to convert Arabic numbers to Roman numerals: breaking down into place value subgroups

Examples of converting Arabic numbers to Roman numerals


Roman numerals from 1 to 100

Roman numerals from 1 to 1000

Mathematical operations with Roman numerals:

I. Addition. Learn by example how to add Roman numerals the right way, like the Romans calculated, steps, explanations

II. Subtraction. Learn by example how to subtract Roman numerals the right way, like the Romans calculated, steps, explanations

III. Addition and subtraction. Learn by example how to add and subtract Roman numerals the right way, like the Romans calculated, steps, explanations