What does MMXIII mean?

MMXIII is the Roman numeral for 2,013 — 1000 + 1000 + 10 + 1 + 1 + 1.

How do you write 2013 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: M (1000), then M (1000), then X (10), then I (1), then I (1), then I (1). That gives MMXIII.

2,013 in Roman numerals

MMXIII

Number (1–3,999 for numerals)

Roman numeral

2,013 is written MMXIII in Roman numerals. That is 6 symbol groups added together, reading left to right from the largest value down.

How it breaks down

MMXIII = 1000 + 1000 + 10 + 1 + 1 + 1 = 2,013
Group	Value	Subtraction	Running total
M	1,000	—	1,000
M	1,000	—	2,000
X	10	—	2,010
I	1	—	2,011
I	1	—	2,012
I	1	—	2,013

No subtraction needed

MMXIII is purely additive — every symbol is simply added to the one before it, with no subtractive pairs like IV or IX. Numbers avoid subtraction when none of their digits is a 4 or a 9.

The symbols

Symbol	Value	Used here
I	1	yes — 3×
V	5	no
X	10	yes — 1×
L	50	no
C	100	no
D	500	no
M	1,000	yes — 2×

The same number, other ways

In words: Two thousand thirteen
Roman numeral: MMXIII
Symbol count: 6 characters
Binary: 11111011101
Hexadecimal: 7DD

The numbers either side

Number	Roman numeral
2,011	MMXI
2,012	MMXII
2,013	MMXIII ←
2,014	MMXIV
2,015	MMXV

Common questions

What is 2013 in Roman numerals?: 2,013 is MMXIII.
What does MMXIII mean?: MMXIII is the Roman numeral for 2,013 — 1000 + 1000 + 10 + 1 + 1 + 1.
How do you write 2013 in Roman numerals?: Take the largest value that fits and repeat until nothing is left: M (1000), then M (1000), then X (10), then I (1), then I (1), then I (1). That gives MMXIII.

Sources

Calculated on this page — At One Place

How these figures are compiled and checked