Convert date: Jan-03, 2018 in Roman numerals, how to write

How to write the calendar date with Roman numerals:
Jan-03, 2018 = ?
(Month-Day, Year)
Jan-03, 2017 = ? ... Jan-03, 2019 = ?

Roman numerals used to make the conversion:


I = 1; V = 5; X = 10; M = 1,000;

Reading rules

Month, Jan (1):

1 = I;

Day, 03:

3 = 1 + 1 + 1 = I + I + I = III;

Year, 2018:

2018 = 2,000 + 10 + 8;


2,000 = 1,000 + 1,000 = M + M = MM;


10 = X;


8 = 5 + 1 + 1 + 1 = V + I + I + I = VIII;


2018 = 2,000 + 10 + 8 = MM + X + VIII = MMXVIII;

Convert numbers to Roman numerals, online calculator


Final answer:

Jan-03, 2018 = I - III - MMXVIII
Month-Day, Year
Jan-03, 2017 = ? ... Jan-03, 2019 = ?

Convert calendar dates into Roman numerals

Latest calendar dates converted to Roman numerals

Dec-27, 2000 = XII - XXVII - MMOct 13 20:28 UTC (GMT)
Sep-05, 18 = IX - V - XVIIIOct 13 20:28 UTC (GMT)
Jan-03, 2018 = I - III - MMXVIIIOct 13 20:28 UTC (GMT)
Dec-27, 2000 = XII - XXVII - MMOct 13 20:28 UTC (GMT)
Dec-27, 2000 = XII - XXVII - MMOct 13 20:28 UTC (GMT)
Apr-11, 2000 = IV - XI - MMOct 13 20:28 UTC (GMT)
Aug-12, 2000 = VIII - XII - MMOct 13 20:28 UTC (GMT)
Dec-27, 2000 = XII - XXVII - MMOct 13 20:28 UTC (GMT)
Dec-27, 2000 = XII - XXVII - MMOct 13 20:28 UTC (GMT)
Dec-27, 2000 = XII - XXVII - MMOct 13 20:28 UTC (GMT)
Aug-12, 2000 = VIII - XII - MMOct 13 20:28 UTC (GMT)
Aug-16, 1345 = VIII - XVI - MCCCXLVOct 13 20:27 UTC (GMT)
Dec-27, 2000 = XII - XXVII - MMOct 13 20:27 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:

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