What is the best size for a writing notebook?

June 10, 2025

Every writer has their own rituals—some swear by a particular pen; others need their cuppa just right. But one of the most overlooked tools in a writer’s toolkit is the notebook. Whether you’re jotting down ideas, crafting the next bestseller, or keeping track of daily thoughts, the right notebook size can make all the difference.

Finding the perfect fit

The best size for a writing notebook depends on your needs, writing style, and where you'll be using it. Here’s a breakdown of the most common sizes and their advantages:

1. A4 (208 x 290mm) – The Desk Companion

Ideal for: Writers who love spacious pages and structured writing.
Best for: Journaling, planning, research, and long-form writing.
Why? An A4 notebook gives you plenty of room to map out ideas, but it’s not the most portable.

2. A5 (141 x 210mm) – The Versatile All-Rounder

Ideal for: Writers who want a balance of space and portability.
Best for: Everyday notetaking, creative writing, bullet journaling.
Why? This size is compact enough to carry around while still offering a decent writing area.

3. B5 (170 x 240mm) – The Creative’s Choice

Ideal for: Writers who need more space than an A5 but don’t want a bulky notebook.
Best for: Sketching out ideas, storyboarding, and creative writing.
Why? A great middle-ground between A4 and A5, giving you flexibility in your writing process.

4. Pocket-Sized A6 or Smaller (90 x 142mm) – The On-the-Go Essential

Ideal for: Writers who need to capture inspiration instantly.
Best for: Quick notes, poetry, travel journals.
Why? Fits in a pocket or small bag, ensuring you never miss a thought.

Choosing based on your writing habits

Are you a daily journaler? A4 or B5 will give you ample space.
Do you write on the move? A5 or pocket-sized is your best bet.
Need structure and organisation? An A5 bullet journal can keep your thoughts aligned.

The Final word

The best notebook size ultimately depends on how and where you write. If you’re a free-flowing creative, a larger notebook might help. If you’re always on the go, a compact option is key. Experiment with different sizes until you find your perfect match!

Ask JustPads about their ranges of notebooks or search www.justpads.co.uk for inspiration.