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Quick answer
The KOKUYO Campus Diary Monthly 2027 is a thin thread-bound student diary with one month per double-page spread, a January start and 32 sheets (64 pages). KOKUYO lists it in A6, B6, A5 and Semi B5, from 500 yen (about US$3.16) before tax, with an A5 grid-ruled version and two weekly layouts.
Thread-bound; KOKUYO's monthly pages do not name the cover material
Released
2026*
Price range
$under $5 per notebook
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Notes on these facts
Made by KOKUYO Co., Ltd.. Country of manufacture not stated: KOKUYO's English product pages for the Campus Diary give the maker and part numbers but no country of manufacture. Check the label on your copy. Price: example listing. Released: The part numbers end in 27 and KOKUYO's pages are current as of February 1, 2026; we found no separate launch date.
Price bands are typical US retail, checked October 2026. Conversions to US dollars are approximate, at October 2026 rates (US$1 = ¥158 = ₩1,330 = NT$32.5 = CN¥6.7 = SEK 9.9 = DKK 6.7 = ₺49.6 = C$1.41 = A$1.43 = CZK 21.7; €1 = US$1.12; £1 = US$1.32; CHF 1 = US$1.21).
Key takeaways
KOKUYO's Campus Diary Monthly has 32 sheets (64 pages), thread-bound, with an annual calendar, a fiscal-year planner and one month per double-page spread.
It comes in A6, B6, A5 and Semi B5; the A5 also comes with a grid-ruled schedule block, and KOKUYO adds limited-edition covers in A6, B6 and A5.
KOKUYO's list prices, before tax, run from 500 yen (about US$3.16) for the A6 to 640 yen (about US$4.05) for the Semi B5, so the monthly books sit in our $ band.
The weekly Campus Diary (A5 and Semi B5, 56 sheets) comes in a horizontal layout with a memo area and a vertical layout with an hourly timeline.
KOKUYO's pages mark the line as scheduled to end while stocks last, and its January-start dates run from December of the previous year to January of the following year.
What is the KOKUYO Campus Diary Monthly?
It is a thin, thread-bound diary for students and office workers that puts one month on each double-page spread. KOKUYO, the Japanese maker behind the Campus notebooks, lists the monthly type in A6, B6, A5 and Semi B5, and each book has 32 sheets, or 64 pages.
KOKUYO describes the contents as an annual calendar, a fiscal-year planner and the monthly schedule. Its own wording says the one-month block spread suits people who keep a digital calendar and want a paper overview beside it.
What sizes does it come in?
Four sizes, from pocket to desk. KOKUYO names the sizes by paper standard rather than millimeters, so the drawings below use the standard A and B6 dimensions.
Size
Sheets
List price before tax
A6
32 (64 pages)
500 yen (about US$3.16)
B6
32 (64 pages)
540 yen (about US$3.42)
A5
32 (64 pages)
560 yen (about US$3.54)
Semi B5
32 (64 pages)
640 yen (about US$4.05)
Our paper sizes guide explains the A and B series. KOKUYO’s pages don’t give the Semi B5 dimensions, so we don’t draw it here.
What colors and layouts are there?
The standard covers are blue and pink, plus limited-edition designs in A6, B6 and A5. The A5 is also made as a grid-ruled monthly in black, green and red. That version has a grid in the schedule area so you can split a day into several entries.
The January start runs from December of the previous year to January of the following year, per KOKUYO. For the 2027 edition that is 14 months, which lets you plan the last month of 2026 and carry one month over into 2028. KOKUYO’s page warns that holidays and event days may change when laws such as the Public Holidays Act are revised.
What about the weekly Campus Diary?
KOKUYO also sells weekly books in A5 and Semi B5 with 56 sheets, or 112 pages. The horizontal type gives each week a spread with room for notes, and the vertical type adds an hourly timeline for scheduling a day by time. They cost 1,070 yen (about US$6.77) in A5 and 1,180 yen (about US$7.47) in Semi B5 before tax, which places them in our $$ band ($5–20). For a monthly book with more room, see our Leuchtturm1917 Monthly Planner; for a three-in-one diary with weekly timelines, see the KOKUYO Jibun Techo Diary 2027.
How does it compare with the rest of the Campus range?
KOKUYO calls the monthly type thin and light; the Campus notebook and ring-binder lines cover other jobs. Our KOKUYO Campus notebook guide covers the ruled notebooks, and the Campus Smart Ring binder covers the loose-leaf option. KOKUYO’s pages list “scheduled to end while stocks last,” so check stock before choosing a size.
Where is it made, and what does it cost?
KOKUYO’s English pages don’t say where it is made; they list the maker only. Its list prices run from 500 yen (about US$3.16) to 640 yen (about US$4.05) before Japanese consumption tax at 158 yen to the dollar, which puts the monthly diaries in our $ band (under $5).
Frequently asked questions
How many pages does the Campus Diary Monthly have?
32 sheets, which is 64 pages, in every monthly size and layout KOKUYO lists. The weekly Campus Diary has 56 sheets, or 112 pages.
What sizes does the Campus Diary Monthly come in?
A6, B6, A5 and Semi B5, per KOKUYO. The A5 is the only size sold with a grid-ruled schedule block, and KOKUYO adds limited-edition covers in A6, B6 and A5.
What months does the January-start diary cover?
KOKUYO's page says the January start runs from December of the previous year to January of the following year, which is 14 months for the 2027 edition.
What is in the monthly diary besides the calendar?
KOKUYO lists an annual calendar, a fiscal-year planner, a monthly schedule with one month per spread. The A5 grid version swaps the schedule block for a grid.
Is there a weekly Campus Diary?
Yes, in A5 and Semi B5 with 56 sheets. One layout is horizontal with a memo area; the other is vertical, with an hourly timeline across each week.
How much does the KOKUYO Campus Diary cost?
KOKUYO's monthly list prices run from 500 yen (about US$3.16) to 640 yen (about US$4.05) before Japanese tax, and the weekly books are 1,070 and 1,180 yen (about US$6.77 and US$7.47). Monthly books fall in our $ band, weekly books in $$.
Is the Campus Diary being discontinued?
KOKUYO marks its Campus Diary pages as scheduled to end while stocks last. Check its shop or a retailer before planning around a particular size.
