On planner and binder refills labeled “A6” here, dimensions can vary slightly by maker. Common sizes you’ll see include:

• 6.7 x 3.7 in (about 170 x 94 mm)
• 6.75 x 3.75 in (about 171 x 95 mm)
• 6.69 x 3.74 in (about 170 x 95 mm)

These are pre‑punched for 6‑ring A6 binders and are intentionally tall and narrow to fit popular budget planners and organizers. If you’re looking for the ISO sheet size, A6 is 4.13 x 5.83 in, which is different from many 6‑ring inserts. To get the best fit, check each listing’s measurements and ring compatibility notes before you add to cart.

In the ISO paper system, A6 measures 105 x 148 mm, which is approximately 4.13 x 5.83 inches. It’s one‑quarter of an A4 sheet and half of A5. That’s the flat sheet size before any hole punching.

For planners, some refills marketed as “A6” are cut differently (often around 6.7 x 3.7 in) to suit 6‑ring binders. If you need the standard ISO A6 for projects or printing, look for that exact dimension in the product details. When shopping inserts for a binder, match the dimensions and ring pattern listed, since formats can vary by brand and intended use.

A quick check can help you avoid mismatches:

1. Confirm your binder type: Most A6 organizers use a 6‑ring configuration.
2. Measure a sheet you already use: Note height, width, and orientation.
3. Match listing details: Compare to the refill’s stated size (e.g., 6.7 x 3.7 in) and look for “A6 6‑hole.”
4. Check hole pattern photos: Product images usually show spacing and alignment.
5. Consider margins: If pages have tabs or printing near edges, a slightly different cut could matter.

Because sizing conventions differ between ISO A6 and 6‑ring planner inserts, aligning your measurements with the product specs can reduce returns. If you’re between options, choosing the refill closest to your current page size is a practical approach.

Pick based on what you’ll write and the pens you prefer:

• Lined: Everyday notes, journaling, class or meeting takeaways.
• Grid: Lists, budgeting tables, sketches, and neater lettering.
• Blank: Doodles, mind maps, or layouts you want to customize.
• Planner/budget inserts: Monthly/weekly pages and expense trackers keep schedules and spending organized.

Also consider paper thickness and finish. Heavier sheets (often noted in listings) can help reduce show‑through with markers or gel pens, while smoother paper may feel nicer for daily writing. Finally, check sheet count and whether pages are pre‑punched for A6 6‑ring binders. Matching these details to your routine can make your setup more usable day to day.

You can create refills with a few simple steps:

1. Choose your target size: ISO A6 is 4.13 x 5.83 in; many 6‑ring A6 binders use pages around 6.7 x 3.7 in. Measure a page you like and match it.
2. Trim paper: Use a ruler and paper trimmer for consistent edges.
3. Punch holes: Align sheets in a compatible 6‑hole punch, using a guide page for reference.
4. Test first: Try one sheet in your binder before cutting a full stack.

Using slightly thicker paper can help minimize bleed‑through, but results vary by pen and ink. Taking a moment to confirm measurements upfront can help your DIY refills sit cleanly on the rings.