998 in Roman Numerals
Nine hundred ninety-eight is written CMXCVIII 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 CMXCVIII is formed
Reading left to right, 998 breaks into these additive parts. Each Roman symbol is added in turn to reach the total.
CM + XC + V + I + I + I = 900 + 90 + 5 + 1 + 1 + 1 = 998.
Where 998 in Roman numerals is used
- Monarch and pope names, for example the 998th of a royal line.
Convert another number
998 is written CMXCVIII in Roman numerals.
Frequently asked questions
How do you write 998 in Roman numerals?
Write 998 as CMXCVIII, combining CM + XC + V + I + I + I. Start from the largest value that fits and work down until nothing is left over.
Why is 998 not written CMLXXXXVIII?
CMXCVIII uses the subtractive rule: a smaller symbol placed before a larger one is taken away, so you never repeat a symbol four times. CMLXXXXVIII breaks that rule, which is why CMXCVIII is the only correct form.
How do you say CMXCVIII in words?
CMXCVIII is 998, spoken as "nine hundred ninety-eight". The numeral is read as the single value 998, not as its separate letters.
What are 997 and 999 in Roman numerals?
997 is CMXCVII and 999 is CMXCIX. Neighbouring numbers often change length in surprising ways, which is why each has its own page.