---
title: "Hobonichi Cousin 2027: A5 Daily & Weekly Planner"
canonical: "https://stationerytimes.com/guides/hobonichi-cousin/"
description: "Hobonichi Techo Cousin 2027 explained: an A5 page-a-day planner with vertical weekly pages, 544 pages of Tomoe River S, a 3.7 mm grid, 445 g, price and origin."
category: "Notebooks"
type: "Planner"
published: 2026-10-20
updated: 2026-10-20
author: "Ellis Penhale"
publisher: "Stationery Times"
sources: 9
products:
  - name: "Hobonichi Techo Cousin Book 2027, A5, English, January start"
    brand: "Hobonichi"
    brand_origin: "Japan"
    made_in: "Japan"
    material: "Tomoe River S paper, thread-sewn binding"
    price_band: "$$$ ($20–75 per notebook, typical US retail, October 2026)"
    manufacturer: "Hobonichi Co., Ltd. (Tokyo)"
    model: "Cousin Book 2027, English, January start (cb27_jan_en)"
    url: "https://www.1101.com/store/techo/ja/2027/pc/detail_cover/cb27_jan_en/"
---

# Hobonichi Cousin 2027: A5 Daily & Weekly Planner

> The Hobonichi Techo Cousin is the A5 version of Hobonichi's page-a-day planner. The 2027 English January-start book measures 210 × 148 × 18 mm, weighs about 445 g and has 544 pages of Tomoe River S paper: 377 daily pages for January 1 to December 31, 2027, plus vertical weekly pages. Hobonichi lists it at ¥4,620 (about US$29).

- URL: https://stationerytimes.com/guides/hobonichi-cousin/
- Category: Notebooks
- Author: Ellis Penhale
- Published: 2026-10-20
- Updated: 2026-10-20

![Drawing of the Hobonichi Cousin 2027 to scale: a closed A5 book 210 mm tall, 148 mm wide and 18 mm thick, and the book open flat on two daily pages with a time scale, checkboxes and a 3.7 mm grid](https://stationerytimes.com/images/raster/hobonichi-cousin-16x9.png)

*The A5 Cousin closed and open on two daily pages (1 mm = 1 px).* Original drawing (SVG): https://stationerytimes.com/images/hobonichi-cousin-cover.svg. Drawings © 2026 Stationery Times, reusable with credit under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).

## Product facts

| Product | Brand | Brand origin | Made in | Material | Released | Price range (typical US retail, October 2026) |
|---|---|---|---|---|---|---|
| Hobonichi Techo Cousin Book 2027, A5, English, January start | Hobonichi (by Hobonichi Co., Ltd. (Tokyo)) | Japan | Japan | Tomoe River S paper, thread-sewn binding | – | $$$: $20–75 per notebook |

- Made in (Hobonichi Techo Cousin Book 2027, A5, English, January start): Japan. Per Boston General Store's 2027 Cousin listing, which files it in its Made in Japan collection. Hobonichi's Japanese store page for the 2027 English Cousin gives size, weight, pages and paper but no country of manufacture (it names one only for a free charm, made in China). Source: https://www.bostongeneralstore.com/collections/made-in-japan/products/hobonichi-techo-book-cousin-a5

## Key takeaways

- Hobonichi lists the 2027 English Cousin at 210 × 148 × 18 mm (8.3 × 5.8 × 0.7 in) and about 445 g.
- It has 544 pages, per Hobonichi: 377 daily pages (January 1 to December 31, 2027) and 106 vertical weekly pages.
- Daily pages use a 3.7 mm grid with a time scale, checkboxes and a quote at the foot.
- Hobonichi's store lists it at ¥4,620 (about US$29) including tax; US shops charge more, which keeps it in our $$$ band ($20–75 per notebook).
- Hobonichi introduced the A5 Cousin with the 2009 edition, for users who wanted more room to write.

## What is the Hobonichi Cousin?

**The Hobonichi Techo Cousin is Hobonichi's A5 planner: one page per day, plus vertical weekly pages, on thin Tomoe River S paper.** It is twice the size of the A6 [Hobonichi Techo Original](https://stationerytimes.com/guides/hobonichi-techo-original/).

Hobonichi's history page says the Cousin was introduced with the 2009 edition, for users who wanted more room to write. The 2027 books went on sale on September 1, 2026.

## Hobonichi Cousin 2027 specs

| Spec | 2027 English Cousin Book (January start) |
|---|---|
| Size | A5: 210 × 148 × 18 mm (8.3 × 5.8 × 0.7 in) |
| Weight | About 445 g (15.7 oz) |
| Pages | 544 |
| Daily pages | January 1 – December 31, 2027 (377 pages) |
| Weekly pages | Vertical, 106 pages |
| Yearly calendars | 2026, 2027, 2028 |
| Monthly calendars | December 2026 – March 2028 (32 pages) |
| Paper | Tomoe River S |
| Grid | 3.7 mm |
| Binding | Thread-sewn (糸かがり製本); lies flat |
| Week start | Monday |
| List price | ¥4,620 (about US$29) including tax (Hobonichi store) |
| Made in | Japan (Boston General Store) |

All figures except origin come from Hobonichi's Japanese store listing for the 2027 English Cousin (手帳本体カズン 英語版), which notes that sizes vary slightly from book to book. Dromgoole's gives the same 210 × 148 × 18 mm.

![Bar chart in proportion of the 544 pages of the 2027 English Hobonichi Cousin: 377 daily pages, 106 vertical weekly pages and 61 pages of calendars, index and notes](https://stationerytimes.com/images/hobonichi-cousin-pages.svg)

*Where the Cousin's 544 pages go; the 61 other pages are worked out from the listed totals.*

## How big is the Hobonichi Cousin?

**At 210 × 148 mm the Cousin is standard A5, the size of most journals, with twice the page area of the A6 Original.** It is a desk planner more than a pocket one.

It is also heavy for a planner: about 445 g, against about 195 g for the Original. Add a cover and it weighs more, so the slim [Hobonichi Weeks](https://stationerytimes.com/guides/hobonichi-weeks/) suits people who want to carry a Hobonichi every day.

## What is on a Cousin daily page?

**Each day gets a full A5 page with a 3.7 mm grid, a date line, a time scale, a few checkboxes and a quote at the foot.** Boston General Store describes the time-of-day segments and the to-do or habit checkboxes.

On a 148 mm wide page, a 3.7 mm grid gives about 40 squares across. That leaves room for a schedule, a to-do list and a journal entry on the same page.


## What are the Cousin's weekly pages?

**The weekly pages show the seven days side by side in columns, with a time scale running down each day.** Hobonichi's Japanese guide calls this vertical weekly diary (週間ダイアリー) a page found only in the Cousin.

It suits time-blocking: plan the week on the weekly spread, then write the details on the daily pages. Hobonichi counts 106 weekly pages in the 2027 book, running from December 28, 2026 to January 2, 2028.

## How does the Cousin compare to the Original and the Weeks?

**The Cousin has the most room; the Original is the pocket daily; the Weeks is the slim weekly.**

| | Cousin | Original | Weeks |
|---|---|---|---|
| Size | 148 × 210 mm (A5) | 105 × 148 mm (A6) | 95 × 186 mm |
| Thickness, weight | 18 mm, about 445 g | 15 mm, about 195 g | 11 mm, about 133 g |
| Pages | 544 | 464 | 240 |
| Daily pages | Yes | Yes | No |
| Weekly pages | Vertical | No | Week + grid |
| Cover | Sold separately | Sold separately | Built in |

For other A5 page-a-day books, such as the Midori MD Diary, see [the best 2027 journals](https://stationerytimes.com/guides/best-2027-journals/).

## Which Cousin edition should you choose?

**Buy the English January-start book for a calendar year.** Hobonichi's Japanese store lists the 2027 Cousin in Japanese and English January-start editions and as a two-book avec set; see our [2027 journals guide](https://stationerytimes.com/guides/best-2027-journals/) for other options.

The book is sold without a cover. Hobonichi and other makers sell A5 Cousin covers separately; US shops sell the 2027 English book alone in our $$$ band.

## Where is the Hobonichi Cousin made?

**Boston General Store files the 2027 Cousin in its Made in Japan collection.** Hobonichi's own store page doesn't state the country of manufacture, so check the back of your book.

## Frequently asked questions

### What size is the Hobonichi Cousin?

It is A5. Hobonichi lists the 2027 English Cousin at 210 × 148 × 18 mm, about 8.3 × 5.8 in and 0.7 in thick, and notes that sizes vary slightly from book to book.

### How heavy is the Hobonichi Cousin?

About 445 g (just under 1 lb) for the 2027 English book, per Hobonichi's store, before you add a cover.

### How many pages are in the Hobonichi Cousin 2027?

Hobonichi lists 544 pages: 377 daily pages, 106 vertical weekly pages, 32 pages of monthly calendars, a 4-page yearly index, 6 memo pages and bonus pages.

### What is the difference between the Hobonichi Cousin and the Original?

The Cousin is A5 and the Original A6, so each daily page has twice the area. The Cousin also adds vertical weekly pages, which the Original doesn't have.

### Does the Hobonichi Cousin come with a cover?

No. The Cousin Book is sold without a cover; Hobonichi and other makers sell A5 Cousin covers separately.

### What dates does the 2027 Cousin cover?

Daily pages run from January 1 to December 31, 2027, and yearly calendars cover 2026 to 2028. Hobonichi lists monthly calendars from December 2026 to March 2028 and weekly pages from December 28, 2026 to January 2, 2028.

### Is the Hobonichi Cousin good for fountain pens?

Its Tomoe River S paper is thin and takes ink well, but writing shows through from the other side. We haven't tested the 2027 Cousin ourselves.

### Where is the Hobonichi Cousin made?

Boston General Store files the 2027 Cousin under made in Japan. Hobonichi, a Tokyo company, doesn't state the country on its store page.

## Sources

- [手帳本体カズン 英語版 ［A5/1日1ページ（英語）/1月/月曜はじまり］ - ほぼ日手帳 2027 (Hobonichi Japanese store: size, weight, 544 pages, 106 weekly pages, ¥4,620)](https://www.1101.com/store/techo/ja/2027/pc/detail_cover/cb27_jan_en/)
- [カズン - 手帳タイプ別ガイド - ほぼ日手帳 2027 (Hobonichi Japanese guide to the Cousin: vertical weekly pages only in the Cousin)](https://www.1101.com/store/techo/ja/2027/all_about/cousin/)
- [Hobonichi: About the Hobonichi Techo, history (Cousin born with the 2009 edition)](https://1101.com/store/techo/en/2018/pc/about/history.html)
- [Hobonichi Techo NEWS: 2027 lineup on sale September 1, 2026](https://www.1101.com/pl/techo_news_en/statuses/469846)
- [Hunter Paper Co.: Hobonichi Techo 2027 English Cousin Book (544 pages, Tomoe River S)](https://hunterpaperco.com/products/hobonichi-techo-2027-english-cousin-book-january-start-a5)
- [Jenni Bick: Hobonichi Techo 2027 Cousin Book A5, English (US price)](https://www.jennibick.com/products/hobonichi-techo-2027-english-cousin-book-a5-size-daily-jan-start-mon-start)
- [Boston General Store: Hobonichi Techo Cousin A5, 2027 (Made in Japan collection, daily page layout)](https://www.bostongeneralstore.com/collections/made-in-japan/products/hobonichi-techo-book-cousin-a5)
- [Dromgoole's: Hobonichi 2027 A5 Techo Cousin Book, English (210 × 148 × 18 mm)](https://www.dromgooles.com/products/hobonichi-2027-a5-techo-cousin-book-english)
- [Boston General Store: Hobonichi A5 Cousin cover, Jin Kitamura (book sold separately)](https://www.bostongeneralstore.com/products/hobonichi-jin-kitamura-love-it-panda-a5-techo-cousin-cover)