Roman Numeral Converter
Convert Arabic numbers to Roman numerals and vice versa.
Result
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Referenztabelle
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
Frequently Asked Questions
How do Roman numerals work?
Roman numerals use letters: I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Smaller values before larger ones are subtracted (IV=4, IX=9). Numbers are read left to right.
What is the largest number in Roman numerals?
Standard Roman numerals go up to 3,999 (MMMCMXCIX). Larger numbers use a vinculum (bar above) to multiply by 1,000, but this is rarely needed in modern usage.
What is the Roman Numeral Converter?
The Roman numerals calculator converts Arabic numbers into Roman numeral notation and vice versa.
How does the Roman Numeral Converter work?
Enter an Arabic number (1-3,999) or Roman numerals. The calculator converts to the other form. The subtractive rule (e.g. IV = 4) is correctly applied.
Key Data and Facts
Basic symbols: I=1, V=5, X=10, L=50, C=100, D=500, M=1,000. Subtractive rule: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900. Max. standard notation: 3,999 (MMMCMXCIX).
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