Answer 05 of 12
How Large Can I Print 8K Stock Photos From Cheap Stock Photos?
Work out print sizes for 8K stock photos with the pixels, dpi and centimetre formula, from 300 dpi magazine pages to posters and banners at 100 to 150 dpi.
Every image on Cheap Stock Photos downloads as a JPG at up to 8K, which means 7680 pixels on the long side. Whether that is enough for your poster, book cover or trade-show panel comes down to one piece of arithmetic. Here it is, with the numbers already worked out.
The formula
Print size is pixels divided by dots per inch. Multiply by 2.54 to get centimetres:
pixels ÷ dpi × 2.54 = cm
Screens do not use dpi in the same way; a 7680 px image fills a 4K display twice over and looks sharp on any monitor or phone. For paper, the dpi you choose depends on how close the viewer will stand.
What 7680 px gives you
At 300 dpi, the standard for glossy magazines and anything read at arm's length, 7680 px comes to about 65 cm (25.6 in) wide. That is already larger than A2, so a full-page magazine spread, a book jacket or a large calendar page is comfortable.
At 150 dpi, which is entirely acceptable for posters and shop displays viewed from a metre or more, the same file prints at about 130 cm wide. At 100 dpi it stretches to roughly 195 cm, which covers a trade-show pull-up banner viewed from across an aisle.
The short side matters too. A typical 16:9 image at 8K is 7680 by 4320 px. At 300 dpi the 4320 px height is about 36.6 cm; at 150 dpi it is about 73 cm.
Some quick reference points for a 7680 x 4320 px file:
- 300 dpi: 65 x 36.6 cm (25.6 x 14.4 in), magazines, books, brochures
- 200 dpi: 97.5 x 54.9 cm, high-quality posters and framed prints
- 150 dpi: 130 x 73 cm, posters, retail displays, exhibition boards
- 100 dpi: 195 x 110 cm, banners and backdrops seen from a distance
- 72 dpi: screens only, where the figure is effectively irrelevant
Not every image is 16:9. Portrait and square images have different proportions, so always check the actual numbers. The image page lists the pixel dimensions next to the "Download JPG" button, and you can plug those straight into the formula.
Choosing a dpi honestly
The 300 dpi rule is a habit from the era of hand-held print. Human eyes cannot resolve 300 dots per inch from two metres away, which is why billboards are routinely printed at 20 to 30 dpi and still look fine. A sensible scale:
Hand-held or desk distance, such as flyers, menus and books: 300 dpi. Wall posters and framed prints viewed from about a metre: 150 to 200 dpi. Exhibition panels and banners viewed from two metres or more: 100 to 150 dpi. Anything larger, ask the printer; they will often accept 72 to 100 dpi for very wide formats.
In other words, 8K stock photos cover almost every job a small business or designer will meet. The exceptions are wall-sized murals and vehicle wraps, where a printer will typically upsample and soften the result, and where the subject choice matters more than the pixel count.
Practical tips before sending to print
Crop first, then check the remaining pixels against your target size. A tight crop of a 7680 px image can drop below 3000 px quickly. Keep the original JPG untouched and save edits as a separate file. Ask the printer for their preferred colour profile and whether they want bleed; both are independent of resolution. Finally, if the image will be viewed on screen only, do not bother with dpi at all; resize to the pixel dimensions of the layout.
Search for the image you need, for example landscape, or browse the full catalogue. Questions about file formats, licensing and credit for stock photos are collected in the FAQ index.