Notebook sizes are the spice of the journal junkie & planner addict lifestyle. If you have a habit of grabbing every bit of stationery and notebook that you come across, you should already be familiar with these sizes. However, if you are new to the planner world ‘B6 sized notebook’ might be a confusing term.

Never fear! Because we have compiled a list of the most common sizes for your reference. If there is a size that you are unsure of, then please feel free to comment below! We will happily look up the information and add it to this notebook sizing FAQ!

Side Note: Links to some of our favorite notebooks will be included. We promise that we will only direct you to products that we 100% love.  Absolutely no commission is awarded to us for these links. Enjoy!

A Series Notebook Sizes Chart

The A Series paper size is known as the ‘International’ paper size to those within the United States. The A-series paper size can be confusing because we often think of the U.S. Legal Letter Size when we think of paper. However, if you look at the below chart, you will see that legal sized paper isn’t standard at all!

Interestingly, even in the U.S. one of the most common notebook sizes is the A5. You can find notebooks of this size in all stores across the world. Approximately ‘half-letter’ sized, it is the perfect size for easy carrying, While still allowing lots of room to write.

As you can see from the chart above, all A-Series paper sizes are derived by folding a single (but huge!) A0 sized paper in half multiple times (to a standard maximum of A10, that is 10 folds total!).

Size Width x Height (in)
Width x Height (mm)
Notebook Recommendation
A0 33.1 x 46.8 in 841 x 1,189 mm
A1 23.4 x 33.1 in 594 x 841 mm
A2 16.5 x 23.4 in 420 x 594 mm
A3 11.7 x 16.5 in 297 x 420 mm
A4 8.3 x 11.7 in 210 x 297 mm  Rhodia DotPad Notebook
A5 5.8 x 8.3 in 148 x 210 mm  Hobonichi Techo Cousin
A6 4.1 x 5.8 in 105 x 148 mm  Stalogy Editor’s Series
A7 2.9 x 4.1 in 74 x 105 mm  Life Noble Notebook
A8 2.0 x 2.9 in 52 x 74 mm
A9 1.5 x 2.0 in 37 x 52 mm
A10 1.0 x 1.5 in 26 x 37 mm

B Series Notebook Sizes Chart

B Series paper sizing was developed in order to provide common/standard paper sizes that were not available within the A Series’ framework. An uncut size of B series paper is referred to as B0 and measures a whopping 39.4 x 55.7 inches / 1000 x 1414 millimeters (3.28 x 4.64 ft / 100 x 141.4 cm) in width x height.

Generally, B series notebooks are larger than A series of the same numeric value in both height and width, but are sized to be a half step between A sizes. For example: A B5 size notebook would be the median size between the A5 notebook sizes and an A4 sheet of paper.

Size Width x Height (in)
Width x Height (mm)
Notebook Recommendation
B0 39.4 x 55.7 1000 x 1414
B1 27.8 x 39.4 707 x 1000
B2 19.7 x 27.8 500 x 707
B3 13.9 x 19.7 353 x 500
B4 9.8 x 13.9 250 x 353
B5 6.9 x 9.8 176 x 250 Stalogy Editors Series
B6 4.9 x 6.9 125 x 176 Nanami Cafe Note B6
B7 3.5 x 4.9 88 x 125  Apica CD Notebook
B8 2.4 x 3.5 65 x 88
B9 1.7 x 2.4 44 x 62
B10 1.2 x 1.7 31 x 44

What About Other Notebook Sizes – Midori, Moleskine Etc

Many companies that produce notebooks will create their own notebook sizes as part of their branding. Moleskine has several different lines of notebooks, and each type of notebook comes with different size options. Depending on the size and type of notebook you select, you could end up with any number of size combinations.

Midori / Traveler’s Notebook sizes can be even trickier. While the Midori notebooks do have an actual standard size (11 cm x 21 cm), some Etsy shop sellers might play with sizing. There are; however, approximately 8 sizes that are generally accepted by fans of the Travelers Notebook:

Traveler’s Notebook Insert Size (in) [W x H]
Size (mm) [W x H]
Large/Cahier (a.k.a: Wide, Large, Cahier) 5 x 8.25 in 127 x 210 mm
B6 4.9 x 6.9 in 124 x 175 mm
Standard (a.k.a: Standard, Regular, Narrow) 4.33 x 8.25 in 110 x 210 mm
B6 Slim 4.25 x 7 in 108 x 178
A6 4.13 x 5.83 in 105 x 148 mm
Personal (a.k.a: Personal, Petite) 3.75 x 6.75 in 95 x 171 mm
Field Notes (a.k.a. Pocket) 3.5 x 5.5 in 89 x 140 mm
Passport 3.5 x 4.8 in 89 x 122 mm


How to Find Notebooks in Your Perfect Size

Once you have found your perfect ‘fit’ it really isn’t that hard to find notebooks in the size you love. A5 series notebooks are easy to locate on mass retailer websites such as Amazon. You can even find many different notebook sizes at large chain stores such as Wal*Mart. Hobby Stores such as Michael’s also carry a wide range of larger sketchbooks of varying paper types.

If you are looking for some notebook sizes that are off the beaten path, Etsy is a great resource to look for notebooks. There are many amazing sellers who cut and bind their own notebook sizes or even take custom requests. While Etsy shops might charge more than other stores out there, you can take pride in helping a small business owner with your purchase.