240 in Roman Numerals
Two hundred forty is written CCXL in Roman numerals. It uses the subtractive rule, where a smaller glyph placed before a larger one is taken away rather than added, which keeps the numeral short and is the part most people find fiddly.
How CCXL is formed
Reading left to right, 240 breaks into these additive parts. Each Roman symbol is added in turn to reach the total.
C + C + XL = 100 + 100 + 40 = 240.
Where 240 in Roman numerals is used
- Monarch and pope names, for example the 240th of a royal line.
Convert another number
240 is written CCXL in Roman numerals.
Frequently asked questions
How do you write 240 in Roman numerals?
Write 240 as CCXL, combining C + C + XL. Start from the largest value that fits and work down until nothing is left over.
Why is 240 not written CCXXXX?
CCXL uses the subtractive rule: a smaller symbol placed before a larger one is taken away, so you never repeat a symbol four times. CCXXXX breaks that rule, which is why CCXL is the only correct form.
How is CCXL broken down?
CCXL breaks down as C (100), C (100), XL (40), so C + C + XL = 100 + 100 + 40 = 240.
What number is CCXL?
CCXL is 240. Read the symbols left to right, treat any smaller-before-larger pair as a single subtraction, and add the groups together.