A6 Card Size
A6 is 105 × 148 mm — a quarter of an A4 sheet. At 300 DPI it's 1240 × 1748 pixels. It's the standard size for postcards, greeting cards, promotional vouchers, and small handout cards. Fits in a standard C6 envelope (114 × 162 mm) without folding — making it the default postcard mailing size internationally.
Specifications
| Pixels | 1240 × 1748 px (at 300 DPI) |
| Millimetres | 105 × 148 mm |
| Centimetres | 10.5 × 14.8 cm |
| Inches | 4.13 × 5.83 in |
| Aspect ratio | 1:1.414 |
| Colour mode | CMYK |
| Bleed | 3 mm |
| Safe zone | 5 mm from trim |
A6 in Pixels at Different DPI
The pixel count changes with DPI setting — choose the right one for your output.
| DPI | Width (px) | Height (px) | Use |
|---|---|---|---|
| 72 | 298 | 420 | Screen preview, PDF viewers |
| 96 | 397 | 559 | Windows screen standard, digital documents |
| 150 | 620 | 874 | Medium-quality print, home printers |
| 300 | 1,240 | 1,748 | Professional print, commercial offset |
Design Tips
- →Keep body copy at 9 pt minimum on A6 — limited space makes type size critical. A single headline plus one key message works better than dense paragraphs.
- →A6 fits inside a C6 envelope (114 × 162 mm) exactly — design for 105 × 148 mm with 3 mm bleed, not the envelope dimensions.
- →For greeting card use, design A6 with a fold: print at A5 (148 × 210 mm) and score/fold at the centreline to produce an A6 folded card.
- →Use 300–350 gsm uncoated stock for premium greeting cards; 170–250 gsm silk or gloss for promotional cards that need to lie flat.
How to Make A6 Designs in Playyy
Three steps, no design software. Set the size once — from the size options or straight in your prompt — and every design comes out at 1,240 × 1,748 px.
- 1
Open Playyy
Playyy runs in your browser, so there's nothing to download. Sign in and you'll land on the Home page.
- 2
Type your prompt and set the A6 size
Describe what you want in the input box on the Home page, then set the size whichever way is quicker. Pick A6 from the size options right underneath — print, poster, and social formats are all in that list. Or just say it in your prompt, like "A6 at 1,240 × 1,748 px", and Playyy matches it. Either way you get 1,240 × 1,748 px at 300 DPI, with no converting from millimetres or inches.
- 3
Create your A6 design and export it for print
Playyy generates the design at the full 1,240 × 1,748 px — that's A6 at 300 DPI, the resolution commercial print expects. Allow 3 mm of bleed and export a print-ready PDF. Colour mode: CMYK.
Create A6 designs with Playyy
Type a prompt, pick A6 from the size options underneath it, and export at 1240 × 1748 px — no design software needed.
Start designing free →Frequently Asked Questions
What is A6 card size in mm?+
A6 is 105 × 148 mm (10.5 × 14.8 cm, or 4.13 × 5.83 inches). It's a quarter of an A4 sheet, or half an A5 sheet. It's the standard international postcard size and fits in a C6 envelope.
What is A6 size in inches?+
A6 is 4.13 × 5.83 inches. The closest US equivalent for postcards is the standard 4 × 6 inch postcard (101.6 × 152.4 mm), which is 3.87 mm wider and 4.4 mm taller than A6.
How big is A6?+
A6 is 105 × 148 mm — roughly the size of a standard postcard or index card. It's small enough to fit in a jacket pocket or handbag, making it practical for event tickets, loyalty cards, and takeaway menus.
What is A6 paper size in pixels?+
At 300 DPI, A6 is 1240 × 1748 pixels. At 150 DPI it's 620 × 874 px. At 96 DPI (screen standard) it's 397 × 560 px. Always design at 300 DPI if the card will be professionally printed.
Is A6 the same as a postcard?+
Close but not identical. A6 is 105 × 148 mm, the ISO standard used across Europe and most of the world. The common US postcard is 6 × 4 in (152.4 × 101.6 mm) — wider and shorter. Check which standard your postal service prices against before printing a large run.