Beta version#
BETA TEST VERSION OF THIS ITEM
This online calculator is currently under heavy development. It may or it may NOT work correctly.
You CAN try to use it. You CAN even get the proper results.
However, please VERIFY all results on your own, as the level of completion of this item is NOT CONFIRMED.
Feel free to send any ideas and comments !
This online calculator is currently under heavy development. It may or it may NOT work correctly.
You CAN try to use it. You CAN even get the proper results.
However, please VERIFY all results on your own, as the level of completion of this item is NOT CONFIRMED.
Feel free to send any ideas and comments !
Roman numbers#
| Arabic number | Roman number |
| 1 | I |
| 2 | II |
| 3 | III |
| 4 | IV |
| 5 | V |
| 6 | VI |
| 7 | VII |
| 8 | VIII |
| 9 | IX |
| 10 | X |
| 20 | XX |
| 30 | XXX |
| 40 | XL |
| 50 | L |
| 60 | LX |
| 70 | LXX |
| 80 | LXXX |
| 90 | XC |
| 100 | C |
| 200 | CC |
| 300 | CCC |
| 400 | CD |
| 500 | D |
| 600 | DC |
| 700 | DCC |
| 800 | DCCC |
| 900 | CM |
| 1000 | M |
| 1500 | MD |
| 2000 | MM |
| 3000 | MMM |
| 4000 | MMMM |
| 5000 | V |
| 10 000 | X |
| 50 000 | L |
| 100 000 | C |
| 500 000 | D |
| 1000 000 | M |
Some facts#
- Numbers written in the Roman system consist of 7 letters: I(1), V(5), X(10), L(50), C(100), D(500), M(1000).
- In the basic version, the maximum Roman digit (M) has the value of 1000. However, sometimes overline is used to multiply digit value by 1000.
- To read the value of the Roman number we count value of digits from left to right, following the rule below:
- if the current number is the same or greater than the next one, then we add it to the result value (e.g. XI gives 10 + 1 = 11),
- if the current number is smaller than the next one, then we subtract it (e.g. IX gives 10 - 1 = 9).
- if the current number is the same or greater than the next one, then we add it to the result value (e.g. XI gives 10 + 1 = 11),
- Despite the spread of the Arabic system, Roman numerals can still be found in some traditional applications, e.g.
- century numeration e.g. XXI means 21st century,
- sometimes dates e.g. in cinematography or to mark date of building construction e.g. MMXVIII (2018),
- names of rulers, e.g. Louis XVI, John Paul II,
- names of historical events, e.g. World War II,
- sometimes chapters numbering in books,
- months numbering, e.g. 31.XII.2018 (31 December 2018).
- century numeration e.g. XXI means 21st century,
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