Roman Numeral Converter
Base ConversionEasyTranslate Roman numeral strings to decimal integers and vice versa.
Alt+5
Converter Panel
Example Test Cases
Standard subtraction (10 + (5 - 1))
Input:XIV
Output:14
Load Case
Standard translation (1000 + 900 + 50 + 20)
Input:1970
Output:MCMLXX
Load Case
Future reference (2000 + 20 + 5 + 1)
Input:2026
Output:MMXXVI
Load Case
Complexity Specs
Time ComplexityO(N)
Space ComplexityO(1)
Contest Notes & Bounds
- Supports bidirectional real-time translations as you type.
- Input values are validated against standard Roman numeral syntax limits.
- Integer bounds are restricted to 1 through 3999 (standard Roman limits).