Posted on Fri 09 December 2016

Jibun Techo size comparisons

Jibun Techo 2017

Update Nov 2017: It's been almost a year since I published this post! In 2017 I ended up switching to a Jibun Techo mini, so I've updated this post with some photos comparing the mini to the A5 slim and to other planners. Luckily, they're colour-coded, because I got a yellow cover for the A5 slim and a pink cover for the mini. Enjoy!


Since there isn't much information available about the Jibun Techo in English, and the sizes aren't the standards we use in the West, lots of people are wondering about the sizes of the Jibun Techos.

I only have the A5 Slim version of the Jibun Techo. There's also a B6 slim version. According to a Google Translate version of the official Kokuyo Jibun Techo page, the dimensions are as follows:

  • A5 Slim Idea and Life books: 125 x 210mm
  • A5 Slim 2017 Diary: 136 x 217mm
  • B6 Slim (mini) Idea and Life books: 108 x 182mm
  • B6 Slim (mini) 2017 Diary: 120 x 190mm

To give you a better idea of how big the A5 Slim version is, I took a bunch of photos comparing mine to other common notebooks and planners I have.

Jibun Techo A5 slim and Jibun Techo mini (B6 slim)

Jibun Techo A5 slim and mini B6 slim

Jibun Techo A5 slim and mini B6 slim

Jibun Techo A5 slim and mini B6 slim

Hobonichi Cousin Avec 2016 (A5)

Next to Hobonichi Cousin Avec

(The Cousin is dirty from being open on my desk 24/7 and not having a cover on it!)

On top of Hobonichi Cousin Avec

Hobonichi Weeks 2017

Jibun A5 slim next to Hobonichi Weeks

Jibun mini next to Hobonichi Weeks

Jibun Techo A5 slim on top of Hobonichi Weeks

Jibun Techo mini on top of Hobonichi Weeks

Jibun Techo mini spine next to Hobonichi Weeks spine

Traveler's Company Notebook Regular (Midori)

Jibun Techo A5 slim next to Regular Traveler's Company Notebook

Jibun Techo mini next to Regular Traveler's Company Notebook

Jibun A5 slim on top of Regular Traveler's Company Notebook

Note: the photo above shows my TN on top of the A5 slim Jibun. The photo below shows the mini Jibun inside the same TN, not underneath it.

Jibun mini inside Regular Traveler's Company Notebook

Traveler's Company Notebook Passport (Midori)

Next to Passport Traveler's Company Notebook

On top of Passport Traveler's Company Notebook

Roterfaden Taschenbegleiter (A5)

Next to Roterfaden Taschenbegleiter

On top of Roterfaden Taschenbegleiter

Inside Roterfaden Taschenbegleiter

Inside Roterfaden Taschenbegleiter

Comparing pages to the Hobonichi Cousin Avec 2016

Hobonichi Cousin Avec pages

Comparing pages to Hobonichi Weeks 2017

Hobonichi Weeks pages

Hobonichi Weeks pages

Hobonichi Weeks pages

Other posts about the Jibun Techo:


P.S. I make some stuff you might like: Exist, a personal analytics app to help you understand your life, and Larder, a bookmarking app for developers.

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