Roman numeral converter
Mag-convert ng Roman numeral
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Nasa Ingles pa sa ngayon ang tool na ito at ang mga tagubilin sa pahinang ito. Pareho itong gumagana: lahat ay tumatakbo sa iyong browser.
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The seven letters
| Letter | Value | Written before a larger letter, it subtracts |
|---|---|---|
| I | 1 | IV = 4, IX = 9 |
| V | 5 | never |
| X | 10 | XL = 40, XC = 90 |
| L | 50 | never |
| C | 100 | CD = 400, CM = 900 |
| D | 500 | never |
| M | 1,000 | – |
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How to convert Roman numerals
- Type a number from 1 to 3999, or a Roman numeral.
- The other box fills in as you type.
- Copy the result.
How Roman numerals work
- Letters are added from left to right: VI is 5 + 1 = 6.
- A smaller letter before a larger one is subtracted, but only I before V and X, X before L and C, and C before D and M: IV is 4 and XC is 90.
- A letter is never repeated more than three times in a row: 4 is IV, not IIII.
- There is no zero, and the standard forms stop at 3999 (MMMCMXCIX).
Mga madalas itanong
Why is IIII refused, when clocks use it?
Many clock faces show 4 as IIII, but the standard form is IV. The converter says which standard form your numeral should have.
Is anything sent anywhere?
No. The calculation happens in your browser as you type; nothing is sent anywhere.