Roman Numeral Converter

Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers in this system are represented by combinations of letters from the Latin alphabet.

This tool features:

• Bidirectional conversion — Convert Arabic numbers to Roman or Roman to Arabic.
• Step-by-step calculation — See how each part of the Roman numeral is calculated.
• Range: 1-3999 — Supports the standard Roman numeral range.
• Instant results — Results update in real-time as you type.

1. Enter a number — Type an Arabic number (1-3999) in the left field.
2. View the Roman numeral — The right field shows the converted Roman numeral.
3. Check the steps — The step-by-step section shows the conversion process.