What does MCCXLIX mean?

MCCXLIX is the Roman numeral for 1,249 — 1000 + 100 + 100 + 40 + 9.

How do you write 1249 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: M (1000), then C (100), then C (100), then XL (40), then IX (9). That gives MCCXLIX.

1,249 in Roman numerals

MCCXLIX

Number (1–3,999 for numerals)

Roman numeral

1,249 is written MCCXLIX in Roman numerals. That is 5 symbol groups added together, reading left to right from the largest value down.

How it breaks down

MCCXLIX = 1000 + 100 + 100 + 40 + 9 = 1,249
Group	Value	Subtraction	Running total
M	1,000	—	1,000
C	100	—	1,100
C	100	—	1,200
XL	40	L − X	1,240
IX	9	X − I	1,249

Why the smaller symbol comes first

MCCXLIX uses subtractive notation in 2 places: XL means L minus X, or 40; IX means X minus I, or 9. 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	no
X	10	yes — 2×
L	50	yes — 1×
C	100	yes — 2×
D	500	no
M	1,000	yes — 1×

The same number, other ways

In words: One thousand two hundred forty-nine
Roman numeral: MCCXLIX
Symbol count: 7 characters
Binary: 10011100001
Hexadecimal: 4E1

The numbers either side

Number	Roman numeral
1,247	MCCXLVII
1,248	MCCXLVIII
1,249	MCCXLIX ←
1,250	MCCL
1,251	MCCLI

Common questions

What is 1249 in Roman numerals?: 1,249 is MCCXLIX.
What does MCCXLIX mean?: MCCXLIX is the Roman numeral for 1,249 — 1000 + 100 + 100 + 40 + 9.
How do you write 1249 in Roman numerals?: Take the largest value that fits and repeat until nothing is left: M (1000), then C (100), then C (100), then XL (40), then IX (9). That gives MCCXLIX.

Sources

Calculated on this page — At One Place

How these figures are compiled and checked