Roman Numeral Converter
Convert numbers and dates to Roman numerals and back.
Number to Roman Numeral
Date to Roman Numeral
Roman Numeral Reference
🏛️ What Are Roman Numerals?
Roman numerals are a numeral system from ancient Rome using seven Latin letters: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). Numbers are formed by combining and subtracting these values — for example, IV = 4, IX = 9, XL = 40, and MCMXCIX = 1999.
Today, Roman numerals are used for dates on monuments and buildings, clock faces, movie sequel numbering, Super Bowl titles, wedding dates, tattoos, and formal inscriptions. Our converter instantly transforms any date into Roman numeral format.
🎯 Popular Uses
💍 Wedding Dates
Convert your wedding date to Roman numerals for invitations, engravings, and keepsakes.
🎨 Tattoo Designs
Roman numeral dates are one of the most popular tattoo designs — birthdays, anniversaries, and milestones.
🏛️ Monuments
Buildings, cornerstones, and monuments traditionally display construction dates in Roman numerals.
📚 Academic & Formal
Outlines, chapter numbers, copyright years, and formal documents use Roman numeral formatting.
❓ Frequently Asked Questions
How do I write a date in Roman numerals?
Enter your date in the tool and it converts each part (month, day, year) to Roman numerals. For example, March 15, 2024 becomes III · XV · MMXXIV.
What's the largest number in Roman numerals?
Standard Roman numerals go up to 3,999 (MMMCMXCIX). Beyond that, overline notation is used where a bar above a numeral multiplies its value by 1,000.
Is this tool free?
Yes, 100% free. No signup, no ads. All processing happens in your browser.