What does CDXLIV mean?

CDXLIV is the Roman numeral for 444 — 400 + 40 + 4.

How do you write 444 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: CD (400), then XL (40), then IV (4). That gives CDXLIV.

444 in Roman numerals

CDXLIV

Number (1–3,999 for numerals)

Roman numeral

444 is written CDXLIV in Roman numerals. That is 3 symbol groups added together, reading left to right from the largest value down.

How it breaks down

CDXLIV = 400 + 40 + 4 = 444
Group	Value	Subtraction	Running total
CD	400	D − C	400
XL	40	L − X	440
IV	4	V − I	444

Why the smaller symbol comes first

CDXLIV uses subtractive notation in 3 places: CD means D minus C, or 400; XL means L minus X, or 40; IV means V minus I, or 4. A smaller symbol placed before a larger one is subtracted from it rather than added, which is why IX is nine and not eleven.

Only six such pairs are valid — IV, IX, XL, XC, CD and CM. That restriction is what makes the notation unambiguous: IIII and IC both look like they should work, but neither is standard, and only one spelling of any number is correct.

The symbols

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

The same number, other ways

In words: Four hundred forty-four
Roman numeral: CDXLIV
Symbol count: 6 characters
Binary: 110111100
Hexadecimal: 1BC

The numbers either side

Number	Roman numeral
442	CDXLII
443	CDXLIII
444	CDXLIV ←
445	CDXLV
446	CDXLVI

Common questions

What is 444 in Roman numerals?: 444 is CDXLIV.
What does CDXLIV mean?: CDXLIV is the Roman numeral for 444 — 400 + 40 + 4.
How do you write 444 in Roman numerals?: Take the largest value that fits and repeat until nothing is left: CD (400), then XL (40), then IV (4). That gives CDXLIV.

Sources

Calculated on this page — At One Place

How these figures are compiled and checked