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Calculator](/apps/future-value-calculator)\n- [Net Present Value Calculator](/apps/net-present-value-calculator)\n- [Inflation Calculator](/apps/inflation-calculator)\n- [Salary Calculator](/apps/salary-calculator)\n- [Income Tax Calculator](/apps/tax-calculator)\n- [Sales Tax Calculator](/apps/sales-tax-calculator)\n- [Tip Calculator](/apps/tip-calculator)\n- [Percentage Calculator](/apps/percentage-calculator)\n- [APR to APY](/apps/apr-to-apy)\n- [Money Converter](/apps/money-converter)\n- [Send Money](/apps/send-money)\n- [Invoice Generator](/apps/invoice-generator)\n- [Calculator](/apps/calculator)\n\n\u003c!--THE END--\u003e\n\n- Health\n- [BMI Calculator](/apps/bmi-calculator)\n- [Body Fat Calculator](/apps/body-fat-calculator)\n- [Calorie Calculator](/apps/calorie-calculator)\n\n\u003c!--THE END--\u003e\n\n- Education\n- [GPA Calculator](/apps/gpa-calculator)\n- [Grade Calculator](/apps/grade-calculator)\n\n\u003c!--THE END--\u003e\n\n- Developer\n- [JSON 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Generator](/apps/lottery-number-generator)\n\n\u003c!--THE END--\u003e\n\n- Productivity\n- [Pomodoro Timer](/apps/pomodoro-timer)\n\n\u003c!--THE END--\u003e\n\n- Math\n- [Pythagoras Theorem](/apps/pythagoras-theorem)\n- [Roman Numeral Converter](/apps/roman-numeral-converter)\n\nRoman Numeral Converter\n\n# Roman Numeral Converter\n\nConvert numbers to Roman numerals and vice versa instantly. Great for students learning numeral systems, history enthusiasts, and designers working with classical typography. Includes conversion rules and a complete reference chart.\n\nArabic Number\n\nRoman Numeral\n\nEnter a value in either field to convert\n\n📋 Copy Result\n\nCopied to clipboard!\n\n## Reference Table\n\nI = 1\n\nIV = 4\n\nV = 5\n\nIX = 9\n\nX = 10\n\nXL = 40\n\nL = 50\n\nXC = 90\n\nC = 100\n\nCD = 400\n\nD = 500\n\nCM = 900\n\nM = 1000\n\n## 🎯 Quiz Mode\n\nTest your Roman numeral knowledge!\n\nStart Quiz\n\n—\n\nCheck\n\nScore: 0 / 0\n\n## Related Products\n\n[📘 History Books →](https://www.amazon.com/s?k=roman%20history%20books\u0026tag=tejji-20) [🎲 Math Games →](https://www.amazon.com/s?k=math%20puzzle%20games%20educational\u0026tag=tejji-20) [🕰️ Desk Clocks →](https://www.amazon.com/s?k=desk%20clock%20roman%20numeral\u0026tag=tejji-20)\n\n*As an Amazon Associate, tejji.com earns from qualifying purchases.*\n\n## Frequently Asked Questions\n\n### What is the range of Roman numerals?\n\nStandard Roman numerals represent numbers from 1 to 3999. There is no symbol for zero, and numbers above 3999 require special notation (vinculum) with an overline to multiply by 1000.\n\n### How does subtraction work in Roman numerals?\n\nA smaller numeral before a larger one means subtraction: IV = 4 (5-1), IX = 9 (10-1), XL = 40 (50-10), XC = 90 (100-10), CD = 400 (500-100), CM = 900 (1000-100).\n\n### Why can't a symbol repeat more than 3 times?\n\nBy convention, no symbol repeats more than three times consecutively. Instead, subtraction is used: IIII is written as IV, XXXX as XL, and CCCC as CD.\n\n### How do I write the current year in Roman numerals?\n\nBreak the year into thousands, hundreds, tens, and ones. For example, 2024 = MM (2000) + XX (20) + IV (4) = MMXXIV.\n\n### What is the best free Roman numeral converter?\n\nThis Roman Numeral Converter is one of the best free tools available. It converts both ways — Arabic to Roman and Roman to Arabic — with instant results and includes a quiz mode for learning.\n\n### Can I use this converter without signing up?\n\nYes. The tool works entirely in your browser with no account, no sign-up, and no data collection. Just type and convert instantly.\n\n## Related Tools\n\n[📐 Pythagorean Theorem math](/apps/pythagoras-theorem) [🎓 GPA Calculator education](/apps/gpa-calculator) [% Percentage Calculator finance](/apps/percentage-calculator) [📅 Age Calculator utility](/apps/age-calculator) [📝 Grade Calculator education](/apps/grade-calculator)\n\n📱\n\nQuick Access\n\nInstall this tool on your device for instant access\n\nInstall App","footer":"\n\n📱 Install Tejji for quick access to this tool Install\n\nTools\n\n- [All Apps](/apps/)\n- [Converters](/convert/)\n- [IP Tools](/ip/)\n- [Calculator](/apps/calculator)\n\nExplore\n\n- [Time \u0026 Date](/time-date/)\n- [Postal Codes](/zip-codes/)\n- [Typing](/typing/)\n- [Extensions](/browser/chrome/extensions/)\n\nCompany\n\n- [About](/home/about)\n- [Contact](/home/contact)\n- [Privacy](/home/privacy)\n- [Terms](/home/terms)\n\nSupport\n\n- [Feedback](/home/contact)\n- [Buy me a coffee](https://buymeacoffee.com/tejji)\n\n© 2026 [Tejji.com](/) — Free online tools for everyone.\n\nWe use cookies for analytics and ads. By clicking \"Accept\", you consent to our use of cookies. [Privacy Policy](/home/privacy)\n\nReject Accept"},"metadata":{"title":"Roman Numeral Converter – Convert \u0026 Learn with Quiz Mode | Tejji","description":"Free online Roman numeral converter — convert between Roman numerals and Arabic numbers (1–3999) instantly. Includes numeral rules and chart. No sign-up required.","imageUrl":"https://tejji.com/page/og-default.png","author":null,"published":null,"modified":null},"rate":{"price":{"priceMicros":0,"currency":""},"license":{"cuid":"","licenseType":"","licensePath":"","permissions":[],"validUntil":""},"error":""}}]