Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers instantly. Perfect for dates, tattoos, clocks, Super Bowl numbers, and copyright years.
Part of our Math & Percentage Calculators collection.
Roman Numeral Converter
Free online calculator
Results update automatically as you type
How to Use This Calculator
- 1
Choose direction: number to Roman, or Roman to number.
- 2
Enter the value.
- 3
The converted result appears instantly.
Roman Numeral System
I=1, V=5, X=10, L=50, C=100, D=500, M=1000 Subtractive notation: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900 Example: 2025 = MM (2000) + XX (20) + V (5) = MMXXV Example: 1994 = M (1000) + CM (900) + XC (90) + IV (4) = MCMXCIV
Example Calculation
Example: What year is MMXXV?
Inputs
convertMode: fromRomanromanInput: MMXXV
Result
MMXXV = 2025
MM = 2000, XX = 20, V = 5. Total = 2025.
Frequently Asked Questions
What is 2025 in Roman numerals?
2025 in Roman numerals is MMXXV. MM = 2000, XX = 20, V = 5.
What is the highest number in Roman numerals?
Standard Roman numerals go up to 3,999 (MMMCMXCIX). Numbers above that traditionally used a bar over the numeral to multiply by 1,000, but this isn't commonly used today.
Why are Roman numerals still used?
They appear on clock faces, movie and TV episode credits (Super Bowl LVIII), book chapter numbers, monarchy and pope names (King Charles III), and are popular in tattoos for dates.