Roman Numeral Converter is designed for the exact search intent behind “roman numeral converter”. Convert ordinary numbers to standard Roman numeral notation and interpret Roman numerals using the familiar I, V, X, L, C, D and M symbols, subject to the directions supported by the tool. Convert Arabic numbers to Roman numerals and, where supported, Roman numerals back to numbers. Roman numeral values I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Modern conventional notation generally places larger values before smaller ones and uses a small set of subtractive pairs. Subtractive notation The standard pairs are IV=4, IX=9, XL=40, XC=90, CD=400 and CM=900 . For example, 90 is XC rather than LXXXX in the modern standardized form. How number-to-Roman conversion works Starting with the largest applicable value, repeatedly subtract its value and append its symbol or valid subtractive pair until the number is represented. Historical variation Roman numerals were not perfectly standardized throughout history. A converter normally follows modern conventional rules, so historical inscriptions can contain forms that differ from its output. Worked example: 1994 = 1000 + 900 + 90 + 4, so it becomes M + CM + XC + IV = MCMXCIV. Common practical uses include Convert chapter, event or outline numbers; Interpret Roman-numeral dates and labels; Check math or history exercises; Verify standard subtractive notation. Important limitations: Historical Roman numeral usage includes nonstandard variants that a modern converter may reject or normalize. Standard Roman numerals do not have a conventional zero symbol. The maximum supported value depends on the converter's implementation and notation rules. Key questions this page should answer include: What are the seven basic Roman numeral symbols? I, V, X, L, C, D and M represent 1, 5, 10, 50, 100, 500 and 1000. Why is 4 written IV instead of IIII? Modern standard notation uses IV as a subtractive pair: I before V means one less than five. How do you write 1994 in Roman numerals? MCMXCIV. Is there a Roman numeral for zero? Standard classical Roman numeral notation does not use a conventional symbol for zero. Can Roman numerals be written differently? Yes. Historical inscriptions sometimes use additive or other variants that differ from today's standardized conventions. The page should stay focused on this differentiator: Converter first + symbol table + six standard subtractive pairs + worked conversion.
How to use this tool
Roman numeral values
I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Modern conventional notation generally places larger values before smaller ones and uses a small set of subtractive pairs.
Subtractive notation
The standard pairs are IV=4, IX=9, XL=40, XC=90, CD=400 and CM=900. For example, 90 is XC rather than LXXXX in the modern standardized form.
How number-to-Roman conversion works
Starting with the largest applicable value, repeatedly subtract its value and append its symbol or valid subtractive pair until the number is represented.
Historical variation
Roman numerals were not perfectly standardized throughout history. A converter normally follows modern conventional rules, so historical inscriptions can contain forms that differ from its output.
Examples
Convert 1994 to Roman numerals
1994 = 1000 + 900 + 90 + 4, so it becomes M + CM + XC + IV = MCMXCIV.
Common use cases
- Convert chapter, event or outline numbers
- Interpret Roman-numeral dates and labels
- Check math or history exercises
- Verify standard subtractive notation
Frequently asked questions
What are the seven basic Roman numeral symbols?
I, V, X, L, C, D and M represent 1, 5, 10, 50, 100, 500 and 1000.
Why is 4 written IV instead of IIII?
Modern standard notation uses IV as a subtractive pair: I before V means one less than five.
How do you write 1994 in Roman numerals?
MCMXCIV.
Is there a Roman numeral for zero?
Standard classical Roman numeral notation does not use a conventional symbol for zero.
Can Roman numerals be written differently?
Yes. Historical inscriptions sometimes use additive or other variants that differ from today's standardized conventions.