What are the exact dimensions of A5 and B5 notebooks?

A5 notebooks measure 148 x 210 mm (5.8 x 8.3 inches), while B5 notebooks are larger at 176 x 250 mm (6.9 x 9.8 inches).

Which notebook size is better for portability?

A5 notebooks are more portable due to their smaller size, making them easier to carry daily.

When should I choose a B5 notebook over an A5?

Choose a B5 notebook if you need extra writing or sketching space but still want a notebook that's not too bulky.

Notebook Size Comparison: A5 vs B5 - Which One Should You Choose?

Discover the differences between A5 and B5 notebook sizes to find the perfect balance of portability and writing space for your needs.

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Oct 20, 2026

The size of a notebook can either be A5 or B5; these are two distinct sizes. A5 measures 148 x 210 mm (5.8 x 8.3 inches), typically considered a half of an A4, making it highly portable and convenient for notes and journaling. B5 is slightly larger, measuring 176 x 250 mm (6.9 x 9.8 inches), offering more space for writing and sketches without being too bulky for daily carry. Your choice should depend on your space needs and portability preferences.

FAQs & Answers

What are the exact dimensions of A5 and B5 notebooks? A5 notebooks measure 148 x 210 mm (5.8 x 8.3 inches), while B5 notebooks are larger at 176 x 250 mm (6.9 x 9.8 inches).
Which notebook size is better for portability? A5 notebooks are more portable due to their smaller size, making them easier to carry daily.
When should I choose a B5 notebook over an A5? Choose a B5 notebook if you need extra writing or sketching space but still want a notebook that's not too bulky.

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