89 in Roman Numerals
Eighty-nine is written LXXXIX 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 LXXXIX is formed
Reading left to right, 89 breaks into these additive parts. Each Roman symbol is added in turn to reach the total.
L + X + X + X + IX = 50 + 10 + 10 + 10 + 9 = 89.
Where 89 in Roman numerals is used
- Outlines, exam questions and list items in formal documents.
- Monarch and pope names, for example the 89th of a royal line.
Convert another number
89 is written LXXXIX in Roman numerals.
Frequently asked questions
How do you write 89 in Roman numerals?
Write 89 as LXXXIX, combining L + X + X + X + IX. Start from the largest value that fits and work down until nothing is left over.
Why is 89 not written LXXXVIIII?
LXXXIX uses the subtractive rule: a smaller symbol placed before a larger one is taken away, so you never repeat a symbol four times. LXXXVIIII breaks that rule, which is why LXXXIX is the only correct form.
What are 88 and 90 in Roman numerals?
88 is LXXXVIII and 90 is XC. Neighbouring numbers often change length in surprising ways, which is why each has its own page.
How is LXXXIX broken down?
LXXXIX breaks down as L (50), X (10), X (10), X (10), IX (9), so L + X + X + X + IX = 50 + 10 + 10 + 10 + 9 = 89.