🔢 Roman Numerals Converter

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Convert between Roman numerals and Arabic numbers online. Supports 1-3999 range with bidirectional conversion. | No registration · Data never leaves your browser

Zero dependencies · Works offline

🔢 Roman Numerals Converter

📖 Roman Numeral Chart

I = 1V = 5X = 10L = 50 C = 100D = 500M = 1000 IV = 4IX = 9XL = 40XC = 90 CD = 400CM = 900
Updated: 2026-07-25

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