Roman Numeral Converter
Convert between Arabic and Roman numerals (Range 1-3999).
Common Roman Numerals
1000M
900CM
500D
400CD
100C
90XC
50L
40XL
10X
9IX
5V
4IV
1I
About This Tool
This is a simple and practical Roman Numeral Converter that supports bidirectional conversion between Arabic and Roman numerals. Just enter a number, and the tool displays the conversion result in real-time. Supports standard Roman numeral range (1-3999) with input validation and one-click copy, perfect for history, math, or design.
Features
- 🔢 Bidirectional: Convert between Arabic and Roman numerals instantly
- ✅ Smart Validation: Validates input format and range (1-3999)
- 📋 One-click Copy: Quickly copy the result
- 📚 Reference Table: Includes a chart of common Roman numerals
- 🔒 Privacy: Pure frontend calculation, no data upload