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I · V · X · L · C · D · M
Roman Numeral Converter
Convert numbers and Roman numerals in either direction. See the canonical form, each symbol’s value and the calculation as you type.
Convert numbers and Roman numerals in either direction. See the canonical form, each symbol’s value and the calculation as you type.
Roman numerals have no standard symbol for zero or negative numbers.
Try an example:
Roman numeral
How the value is built
Searchable Roman numeral chart
| Number (1–3,999,999) | Roman numeral |
|---|
No matching entries.
How to use this converter
Enter a number or a Roman numeral. The other field and the breakdown update immediately.
1994 ↔ MCMXCIV
Roman numeral rules
I=1, V=5, X=10, L=50, C=100, D=500 and M=1000. Only IV, IX, XL, XC, CD and CM use subtraction.
MCMXCIV = 1000 + 900 + 90 + 4 = 1994
Numbers above 3,999
Here parentheses multiply the enclosed value by 1,000: (IV)=4,000 and (XV)=15,000. This is the extended notation used by this converter.
(IV) = 4,000 · (XV) = 15,000
Why do some clocks show IIII?
IIII appears on some clock faces; the standard form is IV.
Roman numerals have no standard symbol for zero or negative numbers.
How to use this converter
Why do some clocks show IIII?
IIII appears on some clock faces; the standard form is IV.
Numbers above 3,999
Here parentheses multiply the enclosed value by 1,000: (IV)=4,000 and (XV)=15,000. This is the extended notation used by this converter.
Roman numeral rules
Roman numerals have no standard symbol for zero or negative numbers.
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