Roman Numeral Converter
Number to Roman Numeral
→
Roman Numeral to Number
→
Common Conversions
🏛 Roman Numeral Converter – Convert Numbers to Roman & Vice Versa
Use this free Roman Numeral Converter to convert between Arabic numbers (1, 2024, etc.) and Roman numerals (I, MMXXIV, etc.). This tool instantly handles both directions – great for learning, history buffs, students, and professionals.
🔁 What Can This Converter Do?
- Convert numbers (1–3999) to Roman numerals
- Convert valid Roman numerals to numbers
- Covers Roman numeral rules and sequences
- Includes examples like
2024 = MMXXIV,XII = 12, and more - Fast, responsive, and educational
🧠 How Do Roman Numerals Work?
Roman numerals are formed using the following letters:
| Symbol | Value |
|---|---|
| I | 1 |
| V | 5 |
| X | 10 |
| L | 50 |
| C | 100 |
| D | 500 |
| M | 1000 |
Example:
yamlCopyEditMMXXIV = 2024
(M = 1000 × 2, X = 10, IV = 4)
✍️ Example Conversions
| Number | Roman |
|---|---|
| 4 | IV |
| 9 | IX |
| 15 | XV |
| 40 | XL |
| 99 | XCIX |
| 1984 | MCMLXXXIV |
| 2024 | MMXXIV |
| 3999 | MMMCMXCIX |
🏫 Who Is This Tool For?
- 📚 Students learning ancient numeral systems
- 🧑🏫 Teachers preparing examples and worksheets
- 🕵️ Historians decoding Roman inscriptions
- 📖 Writers formatting outlines and dates
- 👨💻 Developers validating numeral logic
⚠️ Limitations of Roman Numerals
- No zero in Roman numerals
- Typically valid for numbers 1 to 3999
- Must follow strict symbol order (e.g., IV, not IIII)