Roman Numeral Converter

Convert between Roman numerals and Arabic numbers with validation and reference tables

All processing happens in your browser. No data is uploaded.
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Roman Numeral Converter

Convert between Roman numerals and Arabic numbers with validation and reference tables

🔒All processing happens in your browser. No data is uploaded.
Arabic to Roman
Roman Numeral:MMXXIV
Roman to Arabic
Arabic Number:2024
Reference

Basic Symbols

Symbol
Value
I1
V5
X10
L50
C100
D500
M1000

Subtractive Combinations

Combination
Value
Meaning
IV45 - 1
IX910 - 1
XL4050 - 10
XC90100 - 10
CD400500 - 100
CM9001000 - 100
🔒All processing happens in your browser. No data is uploaded.
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