Roman Numeral Converter
Convert numbers to Roman numerals and back — 1 to 3999. Convert numbers to Roman numerals and Roman numerals to numbers instantly. Covers 1–3999 with subtractive notation explained. Free Roman numeral converter.
Über Roman Numeral Converter
Clock faces, movie sequels, book chapters and Super Bowls keep Roman numerals alive. This converter translates both directions across the classical range 1–3999: enter 2026 and get MMXXVI, paste XLVII and get 47. It applies standard subtractive notation (IV, IX, XL, CM) and flags invalid forms like IIII or VV, with a compact reference chart of the seven symbols and their values.
So verwenden Sie Roman Numeral Converter
- Choose your direction.
- Enter a number (1–3999) or a Roman numeral.
- The conversion appears instantly.
- Check the chart for how the symbols combine.
Wichtigste Funktionen
- Numbers → Roman numerals (1–3999)
- Roman numerals → numbers with validation
- Correct subtractive notation (IV not IIII)
- Symbol reference chart included
Why does Roman numeration stop at 3999?
What is subtractive notation?
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