2003 in Roman Numerals

The year 2003 is written MMIII in Roman numerals: M (1,000) + M (1,000) + I (1) + I (1) + I (1). It is read as the year “two thousand three.”

Convert
1 to 3,999,999. Values of 4,000 and up use a bar (vinculum) that multiplies by 1,000.
Copyable text
MMIII
Lowercase
mmiii
Symbols used
5
2,003 in Roman numeralsMMIII

Show the work

  1. Break 2,003 into place values and write each one: MM (2,000) + III (3)
  2. Join the pieces: MMIII
Place-value breakdown
PlaceValueNumeral
Thousands2,000MM
Hundreds0— (no symbol for zero)
Tens0— (no symbol for zero)
Ones3III
Roman numeral symbols
SymbolPlain-text formValue
II1
VV5
XX10
LL50
CC100
DD500
MM1,000
V̅(V)5,000
X̅(X)10,000
L̅(L)50,000
C̅(C)100,000
D̅(D)500,000
M̅(M)1,000,000

2003 in Roman numerals at a glance

Roman numeral
MMIII
Lowercase
mmiii
Letters
5
Parts
M · M · I · I · I
Subtractive pairs
None
Read aloud
two thousand three
Leap year?
No

How MMIII is built

Roman numerals are written one decimal place at a time, from the largest place to the smallest. Converting each digit of 2003 separately and joining the pieces gives MMIII:

PlaceDigitValueNumeral
Thousands22,000MM
Hundreds00— (zero has no symbol)
Tens00— (zero has no symbol)
Ones33III

Reading it back, left to right:

  • M = 1,000 → running total 1,000
  • M = 1,000 → running total 2,000
  • I = 1 → running total 2,001
  • I = 1 → running total 2,002
  • I = 1 → running total 2,003

Why MMIII has 5 letters

Every year from 2000 to 2099 begins with MM (2,000); the rest of MMIII after MM — III — spells out 3. Of the 201 years from 1900 to 2100, 146 have a longer numeral and 23 a shorter one.

The rules MMIII follows

  • Largest to smallest. MMIII uses the symbols M and I (5 characters in all), and the values never increase from left to right except inside a subtractive pair.
  • No subtraction needed. None of the digits of 2003 is a 4 or a 9, so MMIII is purely additive: just add the symbol values.
  • Repetition. MM repeats M two times and III repeats I three times. I, X, C and M may repeat up to three times in a row; V, L and D never repeat.

The year 2003 in Roman numerals: where it appears

  • Credits, diplomas and keepsakes. Many productions still print the copyright year as a numeral, and recent dates such as MMIII are popular for wedding bands, tattoos and anniversary gifts.
  • Championship numbering. The pro football championship played in early 2003 was game XXXVII (37), since the series began with game I in January 1967.
  • On a calendar. 2003 was not a leap year (365 days), and January 1 fell on a Wednesday. A full date such as July 4, 2003 is often written VII · IV · MMIII.

To turn a complete birth date or wedding date into numerals — with dots, dashes or spaces in US or day-first order — use the Roman numeral date converter.

Years around 2003 in Roman numerals

YearRoman numeralLetters
1998MCMXCVIII9
1999MCMXCIX7
2000MM2
2001MMI3
2002MMII4
2003MMIII5
2004MMIV4
2005MMV3
2006MMVI4
2007MMVII5
2008MMVIII6

Frequently asked questions

How do you write 2003 in Roman numerals?

2003 is written MMIII. Break it into M (1000), M (1000), I (1), I (1), I (1) and add the parts: 1000 + 1000 + 1 + 1 + 1 = 2003.

How do you say MMIII?

Read the value, not the letters: MMIII is the year 2003, said “two thousand three.” Spelling out the letters one by one is only useful when checking a carving or engraving.

What year comes after MMIII?

2004, written MMIV. The year before, 2002, is MMII.

Need a different value? Use the Roman numeral converter, or browse the Roman numerals chart.