Compiled from 7 sources; we haven't tested these products ourselves yet. How we research
Quick answer
Based on published maker specs, the best 2027 monthly planners are the Leuchtturm1917 Monthly Planner with Notebook for a month view plus a notebook, the KOKUYO Campus Diary Monthly for the lowest price, the Midori Flat Diary for writing without a desk, and the Midori Double Schedule Diary for two calendars in one book.
Leuchtturm1917 Monthly Planner with Notebook 2027: Made by LEUCHTTURM1917 GmbH (Geesthacht, Germany). Country of manufacture not stated: Leuchtturm1917's English and German product pages name only the maker, LEUCHTTURM1917 GmbH in Geesthacht, and no country of manufacture. Check the label on your copy. Released: The 2027 edition's calendar starts November 1, 2026; we found no separate launch date.
KOKUYO Campus Diary Monthly 2027: 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. Released: The part numbers end in 27 and KOKUYO's pages are current as of February 1, 2026; we found no separate launch date.
Midori Flat Diary 2027: Made by Designphil Inc.. Made in Japan: Midori's official online store lists the country of origin as Made in Japan for the A5 and A4 Flat Diary 2027. Source. Released: Midori's store lists the 2027 edition, with dates from October 2026; we found no separate launch date.
Midori Double Schedule Diary 2027: Made by Designphil Inc.. Made in Japan: Midori's official online store lists the country of origin as Made in Japan for this diary. Source. Released: Midori's store lists the 2027 edition, dated from late 2026; we found no separate launch date.
Midori Pocket Diary 2027 (Slim): Made by Designphil Inc.. Made in Japan: Midori's official online store lists the country of origin as Made in Japan for the Pocket Diary 2027 in each size we checked. Source. Released: Midori's store lists the 2027 edition, dated from January 2027; we found no separate launch date.
Roterfaden Monthly Calendar Booklet (undated): Made by Roterfaden (Saarbrücken, Germany). Made in Germany: Roterfaden's site says its notebooks are printed by small and medium-sized businesses in Germany and bound with red thread, and describes the range as 100% made in Germany.
STALOGY Removable Seal Calendar: Made by Nitoms, Inc.. Country of manufacture not stated: STALOGY's product page for the Removable Seal Calendar gives sizes and prices but no country of manufacture. Our STALOGY 365Days Notebook guide notes that STALOGY's About page says Nitoms develops and makes the line; check the label on your pack.
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
The KOKUYO Campus Diary Monthly is the cheapest pick: KOKUYO lists 540 yen (about US$3.42) before tax for the B6, in our $ band.
The Leuchtturm1917 Monthly Planner with Notebook is the only pick that adds 136 notebook pages after 16 monthly spreads, and the only one in our $$$ band.
The Midori Flat Diary has a stiff foam cover that works as a writing board; Midori lists the A5 at 1,320 yen (about US$8.35) with tax, made in Japan.
The Roterfaden booklet and the STALOGY stickers are undated, so you can start any month.
Date ranges differ by pick, from October 2026 to March 2028, so check that the months you need are covered.
What are the best monthly planners for 2027?
On published specs, the best monthly planners for 2027 are the Leuchtturm1917 Monthly Planner with Notebook, the KOKUYO Campus Diary Monthly, the Midori Flat Diary and the Midori Double Schedule Diary. There is no single winner, because the picks differ in size, date range and price.
Best monthly planner with a notebook:Leuchtturm1917 Monthly Planner with Notebook 2027. Why it’s here: it is the only pick with 136 dotted notebook pages after 16 monthly spreads, in B5 or B6+; it is also the priciest, from €24.50 (about US$27).
Cheapest monthly planner:KOKUYO Campus Diary Monthly 2027. Why it’s here: 64 thread-bound pages with a month per spread in A6, B6, A5 or Semi B5, from 500 yen (about US$3.16) before tax.
Best for writing without a desk:Midori Flat Diary 2027. Why it’s here: a foam polypropylene cover that Midori compares to a clipboard, plus an inside pocket for handouts; 1,320 yen (about US$8.35) for the A5.
Best for two calendars:Midori Double Schedule Diary 2027. Why it’s here: two red and blue sets of the same monthly pages in one B6 book, at 1,650 yen (about US$10.44).
Best for a pocket:Midori Pocket Diary 2027. Why it’s here: the Slim is 175 × 96 × 5 mm and about 61 g, at 880 yen (about US$5.57).
Best undated booklet:Roterfaden Monthly Calendar Booklet. Why it’s here: 12 undated double-page months with a 36-row to-do list each, made in Germany, at €11.00 (about US$12.30).
Best for adding a calendar to any notebook:STALOGY Removable Seal Calendar. Why it’s here: a write-in sticker calendar with a removable back, from 638 yen (about US$4.04).
How did we choose these picks?
We compiled these picks from the makers’ own pages, not hands-on testing. Each pick has to show one month at a time, publish its size and page count, and have a maker page we could read. We compared the makers’ specs, date ranges and tax-included or list prices, and left out weekly and daily books.
The Midori Pocket Diary Slim is the thinnest and lightest, at 5 mm and about 61 g, per Midori. The Double Schedule is also 5 mm thick at about 127 g, in a larger B6 body. The Leuchtturm1917 Paperback (B6+) is the biggest of the bag-friendly sizes because it carries notebook pages as well.
Which monthly planner is best for work?
The Midori Flat Diary suits desk-free work, and the Double Schedule suits splitting job and home. The Flat Diary’s cover and pocket are built for seminars and meetings. The Double Schedule keeps two sets of months, red and blue, and a patented index flips between them. For a month with hourly lines, see the Midori Business Diary A5 Monthly 2027, which Midori rules from 7:00 to 20:00.
Which monthly planners are undated?
The Roterfaden booklet and the STALOGY stickers. Roterfaden’s 12 double-page months have weekday names in German and English, so you write in the dates. STALOGY’s calendars have a write-in date field. Midori’s Yuru Log Free Monthly Diary is also undated, with 12 monthly pages and a 2 mm grid memo section.
Where are these planners made?
Midori lists Japan for each of its three diaries here, and Roterfaden says its booklet is made and printed in Germany. Leuchtturm1917, KOKUYO and STALOGY don’t state a country on the pages we read, so check the label on your copy. Prices come from each maker’s page, converted at 158 yen to the dollar and 1.12 dollars to the euro.
Frequently asked questions
What is the best monthly planner for 2027?
For a month view with a notebook attached, the Leuchtturm1917 Monthly Planner with Notebook 2027; for the lowest price, the KOKUYO Campus Diary Monthly; for a stiff cover you can write on standing up, the Midori Flat Diary 2027.
Which monthly planner is cheapest?
KOKUYO's Campus Diary Monthly: its list prices run from 500 yen (about US$3.16) for the A6 to 640 yen (about US$4.05) for the Semi B5 before tax. STALOGY's small calendar stickers, from 638 yen (about US$4.04), are also in our $ band.
Which monthly planner is best for pockets and bags?
The Midori Pocket Diary Slim, at 175 × 96 × 5 mm and about 61 g per Midori's store, is the thinnest and lightest book here. It covers 15 months from January 2027.
Is there an undated monthly planner?
Yes. Roterfaden's Monthly Calendar booklet has 12 undated double-page months, and STALOGY's Removable Seal Calendar has a write-in date field, so you choose the start month for either.
Can one planner hold two calendars?
The Midori Double Schedule Diary 2027 has two sets of the same 15 monthly pages, one red and one blue, so work and private plans can share one B6 book.
Which monthly planners are made in Japan or Germany?
Midori lists Japan for its Flat, Double Schedule and Pocket diaries, and Roterfaden says its booklet is made and printed in Germany. Leuchtturm1917, KOKUYO and STALOGY don't state a country on the pages we read.
Are there monthly planners for a different start month?
The picks start in October 2026, November 2026, December 2026 or January 2027, depending on the book. Midori's Flat Diary page says no April, September or Sunday-start versions are planned.
Leuchtturm1917 Monthly Planner with Notebook 2027
KOKUYO Campus Diary Monthly 2027
Midori Flat Diary 2027
Midori Double Schedule Diary 2027
Midori Pocket Diary 2027
Roterfaden Monthly Calendar Booklet
STALOGY Removable Seal Calendar