29 in Roman Numerals
Twenty-nine is written XXIX 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 XXIX is formed
Reading left to right, 29 breaks into these additive parts. Each Roman symbol is added in turn to reach the total.
X + X + IX = 10 + 10 + 9 = 29.
Where 29 in Roman numerals is used
- Chapter, act or appendix numbering in books and plays.
- Super Bowl XXIX and other numbered championship events.
- Outlines, exam questions and list items in formal documents.
- Monarch and pope names, for example the 29th of a royal line.
Good to know about 29
- Super Bowl XXIX was played in 1995; the NFL numbers its championship in Roman numerals (with the one-off exception of Super Bowl 50).
Convert another number
29 is written XXIX in Roman numerals.
Frequently asked questions
How do you write 29 in Roman numerals?
Write 29 as XXIX, combining X + X + IX. Start from the largest value that fits and work down until nothing is left over.
Why is 29 not written XXVIIII?
XXIX uses the subtractive rule: a smaller symbol placed before a larger one is taken away, so you never repeat a symbol four times. XXVIIII breaks that rule, which is why XXIX is the only correct form.
Which Super Bowl is XXIX?
Super Bowl XXIX is the 29th Super Bowl, played in 1995. The NFL sets its championship number in Roman numerals, which is why so many people look up values like XXIX.
What are 28 and 30 in Roman numerals?
28 is XXVIII and 30 is XXX. Neighbouring numbers often change length in surprising ways, which is why each has its own page.