Photo Collage Size Cheat Sheet (2026)
Compare example collage ratios for social posts and print. Read the actual export dimensions before saving, and distinguish destination examples from the sizes available in this editor.
Try this in the collage editorWrong size is the most common reason a collage looks blurry or gets awkwardly cropped. This cheat sheet gives you the right canvas for every destination — social feeds, stories, thumbnails and paper — so you set it once and never guess again.
Print collage sizes
For paper, multiply inches by 300 to get the pixels you need — that's the print industry's standard for crisp results. A 4x6 print needs 1200 x 1800 pixels; an 8x10 needs 2400 x 3000.
Always start from the highest-resolution originals you have. A collage is only as sharp as its softest photo, so check each image at full size before you commit to print.
| Print size | Pixels needed | Ratio |
|---|---|---|
| 4 x 6 in | 1200 x 1800 | 3:2 |
| 5 x 7 in | 1500 x 2100 | 5:7 |
| 8 x 10 in | 2400 x 3000 | 4:5 |
| 12 x 12 in | 3600 x 3600 | 1:1 |
| A4 | 2480 x 3508 | 1:1.414 |
Separate reference dimensions from available exports
A destination's suggested dimensions are a planning reference, not a promise that this editor produces every exact size. Choose the matching ratio, then inspect the 1600, 2400 or 3600-pixel longest-edge export. For example, a 9:16 High image is 1350 by 2400 pixels. Exact custom sizing requires another image tool. For print, calculate pixels per inch from the final file.
Read the dimensions before downloading
Try a Story 9:16 canvas with High resolution. Check its 1350 by 2400-pixel dimensions, then compare them with your destination. Use another tool for an exact custom pixel size.
Frequently asked questions
What is the best size for a photo collage?
It depends on the destination: 1080 x 1080 or 1080 x 1350 for Instagram posts, 1080 x 1920 for TikTok and Stories, 1280 x 720 for YouTube thumbnails. For a 300-pixels-per-inch print target, multiply inches by 300 — 2400 x 3000 for an 8x10.
What DPI should a photo collage be for printing?
300 pixels per inch is a useful planning target for small photo prints; check your printer's requirements. Multiply your print size in inches by 300 to get the required pixels — for example, 5 x 7 inches needs 1500 x 2100 pixels.
Why does my collage look blurry?
Usually the canvas is too small or a source photo is low resolution. Export at the largest size available and start from high-resolution originals; enlarging a small collage afterwards never restores sharpness.
Will my collage have a watermark?
No. Every PNG, JPEG and WebP download is clean, with no Photo To Collage branding placed on the image.
Is Photo To Collage free to use?
Yes. Photo To Collage is completely free with no subscription, trial limit or hidden export fee. The editor has browser resource limits, and supports up to 20 photos in one collage.
Are my photos uploaded to a server?
No. The editor decodes and renders your photos inside the current browser tab. Image pixels, filenames and EXIF data are never sent to Photo To Collage.
Can I make this collage on my phone?
Yes. The editor is touch-friendly and runs in mobile browsers, so you can add, reorder, crop and export photos on a phone or tablet.
Social media collage sizes
Every platform has a native shape, and collages that match it fill the screen instead of floating in letterbox bars. Start from these sizes and you'll rarely need to adjust.
When in doubt, export larger than you need — shrinking a big collage stays sharp, but enlarging a small one never does.