Historical & Modern Calendar Transcriber

Roman Numeral Date Converter

Convert any modern date into classical Roman numeral notation or vice-versa. Supports date formats with separators such as /, -, ., or spaces.

Quick Presets:
Date Conversion Result
2026/10/31 = MMXXVI/X/XXXI
Classical Monumental Inscription:
DIE TRICESIMO PRIMO MENSIS OCTOBRIS ANNO DOMINI MMXXVI
Syntax & Formatting Guide

How to Read and Write Dates in Roman Numerals

Writing a calendar date in Roman numerals requires translating three independent numbers: the day, the month, and the year. Unlike continuous text, dates use visual separators such as interpuncts (middle dots ·), periods (.), slashes (/), or dashes (-).

• Day-Month-Year (UK / Europe): DD·MM·YYYY
• Month-Day-Year (US): MM·DD·YYYY
• Year-Month-Day (ISO / Classical): YYYY·MM·DD

Example: July 4, 1776 translates to IV·VII·MDCCLXXVI (Day 4 = IV, Month 7 = VII, Year 1776 = MDCCLXXVI).

Tattoo & Memorial Inspiration

Examples: Birthdays, Anniversaries, and Tattoo Dates

Roman numeral tattoos are enduring favorites because their geometric, linear capital letters provide timeless gravitas and personal privacy compared to plain digits:

Birthday Example (Oct 24, 1994): XXIV·X·MCMXCIV
Wedding Anniversary (June 15, 2023): XV·VI·MMXXIII
New Year Milestone (Jan 1, 2026): I·I·MMXXVI
Epigraphic Date Handbook

How Roman Numeral Date Conversion Works

Transcribing modern calendar dates into classical Roman numerals is one of the most popular uses of ancient numerical systems today. From graduation plaques, cornerstone dedications, and monument engravings to commemorative tattoos and movie copyright year tags, Roman numeral dates project timeless permanence, gravitas, and classical elegance.

1. Day · Month · Year
XXV · XII · MMXXVI

Popular in Europe and classical epigraphy. Ideal for memorial tattoos and family heirlooms.

2. Month / Day / Year
XII / XXV / MMXXVI

Standard American calendar sequence. Widely used on certificates and wedding invitations.

3. ISO Year - Month - Day
MMXXVI - XII - XXV

Chronological sorting standard. Used on public architecture and film copyright frames.

Step-by-Step Date Conversion Guide

To convert any date into Roman numerals, break the calendar date into its three fundamental units—Day, Month, and Year—and convert each independently:

Component Arabic Example Roman Equivalent Decomposition Method
Month October (10) X Decem (10 = X)
Day 31st XXXI 30 + 1 = XXX + I
Year 2026 MMXXVI 2000 (MM) + 20 (XX) + 6 (VI)
Combined 2026/10/31 MMXXVI/X/XXXI Connected with standard slash separator

All 12 Calendar Months in Roman Numerals & Latin

The names of our modern calendar months are directly inherited from the Roman Julian and Republican calendars. Notice that leading zeros are always dropped:

1. January I
Mensis Ianuarius
2. February II
Mensis Februarius
3. March III
Mensis Martius
4. April IV
Mensis Aprilis
5. May V
Mensis Maius
6. June VI
Mensis Iunius
7. July VII
Mensis Iulius
8. August VIII
Mensis Augustus
9. September IX
Mensis September
10. October X
Mensis October
11. November XI
Mensis November
12. December XII
Mensis December

Famous Historical Dates in Roman Numerals

United States Declaration of Independence
July 4, 1776
IV · VII · MDCCLXXVI
Apollo 11 Moon Landing
July 20, 1969
XX · VII · MCMLXIX
The Millennium (Y2K)
January 1, 2000
I · I · MM
Fall of Constantinople
May 29, 1453
XXIX · V · MCDLIII

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