Roman Numerals to Decimal Number Converter for Education & Publishing
Convert between Roman numerals and decimal numbers easily. Perfect for historical document analysis, education, and publishing. Supports all standard Roman numerals with instant validation.
Roman Numerals Converter
Convert numbers between Roman numerals and decimal numbers
Input
Result:
How to Use
- Choose your conversion type (Roman to Decimal or Decimal to Roman)
- Enter your number in the input field
- Click Convert to see the result
- Use the copy button to copy the result
Key Features
- Convert between Roman numerals and decimal numbers
- Support for all standard Roman numerals (I, V, X, L, C, D, M)
- Real-time input validation
- One-click result copying
Common Use Cases
- Historical document analysis
- Educational purposes
- Publishing and typography
- Understanding ancient Roman mathematics
Frequently Asked Questions
Roman numerals are a number system that originated in ancient Rome. They use combinations of letters (I, V, X, L, C, D, M) to represent numbers. Each symbol represents a fixed value: I=1, V=5, X=10, L=50, C=100, D=500, M=1000.
Roman numerals follow specific rules: numbers are generally written largest to smallest from left to right. When a smaller number comes before a larger one, it means subtraction (e.g., IV = 4). No more than three of the same symbol should appear in a row, except for M.
Traditional Roman numerals can only represent numbers up to 3999 (MMMCMXCIX) without using special symbols. While there are extended notations for larger numbers, they are not standardized or widely used.