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Roman Numeral Converter

Roman ↔ Arabic numbers

Easily convert between Roman numerals and Arabic numbers (1-3999). Perfect for historical dates, book chapters, and academic writing.

100% FreeNo Sign UpSecure & PrivateInstant Result
Arabic Number (1-3999)0 chars
Roman Numeral0 chars

Roman Numeral Legend:

I = 1, V = 5

X = 10, L = 50

C = 100, D = 500

M = 1000

Examples: 1994 = MCMXCIV, 2024 = MMXXIV

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Roman Numeral Converter — Free Online Tool

Use this free online tool instantly. No signup, no watermark, 100% free forever. Works on all devices.

Why Use This Tool?

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Instant Results

Get results in seconds — no waiting, no processing queue, no delays.

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100% Private

All processing happens in your browser. Files never leave your device.

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No Signup

Open the tool and use it immediately. No account or registration needed.

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Always Free

Not a trial, not freemium. 100% free forever with no hidden charges.

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All Devices

Works on desktop, tablet and mobile — iPhone, Android, any browser.

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No Install

Pure browser-based tool. No software download or installation required.

Features

  • ✓ Bidirectional conversion (Roman ↔ Arabic)
  • ✓ Supports numbers 1-3999
  • ✓ Instant conversion on input
  • ✓ Copy results to clipboard
  • ✓ Shows Roman numeral legend
  • ✓ Real-time validation

Frequently Asked Questions

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We don't store any of your data or files. All files are instantly deleted after your use completes.

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