What does MMXVIII mean?

MMXVIII is the Roman numeral for 2,018 — 1000 + 1000 + 10 + 5 + 1 + 1 + 1.

How do you write 2018 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: M (1000), then M (1000), then X (10), then V (5), then I (1), then I (1), then I (1). That gives MMXVIII.

2,018 in Roman numerals

MMXVIII

Number (1–3,999 for numerals)

Roman numeral

2,018 is written MMXVIII in Roman numerals. That is 7 symbol groups added together, reading left to right from the largest value down.

How it breaks down

MMXVIII = 1000 + 1000 + 10 + 5 + 1 + 1 + 1 = 2,018
Group	Value	Subtraction	Running total
M	1,000	—	1,000
M	1,000	—	2,000
X	10	—	2,010
V	5	—	2,015
I	1	—	2,016
I	1	—	2,017
I	1	—	2,018

No subtraction needed

MMXVIII 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	yes — 1×
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 eighteen
Roman numeral: MMXVIII
Symbol count: 7 characters
Binary: 11111100010
Hexadecimal: 7E2

The numbers either side

Number	Roman numeral
2,016	MMXVI
2,017	MMXVII
2,018	MMXVIII ←
2,019	MMXIX
2,020	MMXX

Common questions

What is 2018 in Roman numerals?: 2,018 is MMXVIII.
What does MMXVIII mean?: MMXVIII is the Roman numeral for 2,018 — 1000 + 1000 + 10 + 5 + 1 + 1 + 1.
How do you write 2018 in Roman numerals?: Take the largest value that fits and repeat until nothing is left: M (1000), then M (1000), then X (10), then V (5), then I (1), then I (1), then I (1). That gives MMXVIII.

Sources

Calculated on this page — At One Place

How these figures are compiled and checked