Roman Numeral Converter
Type a number to get its Roman numeral, or type a Roman numeral to get the number — the converter detects which one you entered.
Updated
Formula
I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000
A smaller numeral before a larger one is subtracted (IV = 4, XC = 90); otherwise values are added (VI = 6). Only I, X and C are used subtractively.
Examples
2026
2,026 = MMXXVI
1947
1,947 = MCMXLVII
MCMXCIX
MCMXCIX = 1,999
Reference table
| Symbol | Value |
|---|---|
| I | 1 |
| IV | 4 |
| V | 5 |
| IX | 9 |
| X | 10 |
| XL | 40 |
| L | 50 |
| XC | 90 |
| C | 100 |
| CD | 400 |
| D | 500 |
| CM | 900 |
| M | 1000 |
Important information
- Standard Roman numerals stop at 3,999 (MMMCMXCIX). Larger numbers historically used a bar over the numeral to multiply by 1,000.
Frequently asked questions
What is 2026 in Roman numerals?
MMXXVI.
Why is 4 written IV and not IIII?
Standard notation subtracts I from V. IIII appears on some clock faces, but IV is the accepted form.
Is there a Roman numeral for zero?
No. The Roman system had no symbol for zero.
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