Pet photo frame sizes: the complete chart
The standard frame sizes for a pet photo are 5x7, 8x10, 11x14, 12x16, 16x20, 18x24 and 24x36 inches, plus A4 and A3 in the UK, Europe and Australia, and 8x8 and 12x12 for square frames. Each one needs its inches multiplied by 300 to get the pixels for a sharp print — 2,400×3,000 for an 8x10, for example. Before you print a pet photo, check which of these it can actually fill; the checker below does it in a second.
| Print size | Inches | Pixels at 300 DPI | Pixels at 200 DPI | Camera needed |
|---|---|---|---|---|
| 5x7" | 5 × 7 | 1,500 × 2,100 | 1,000 × 1,400 | 3.1 MP |
| 8x8" | 8 × 8 | 2,400 × 2,400 | 1,600 × 1,600 | 5.8 MP |
| 8x10" | 8 × 10 | 2,400 × 3,000 | 1,600 × 2,000 | 7.2 MP |
| A4 | 8.27 × 11.69 | 2,481 × 3,507 | 1,654 × 2,338 | 8.7 MP |
| 11x14" | 11 × 14 | 3,300 × 4,200 | 2,200 × 2,800 | 14 MP |
| 12x12" | 12 × 12 | 3,600 × 3,600 | 2,400 × 2,400 | 13 MP |
| 12x16" | 12 × 16 | 3,600 × 4,800 | 2,400 × 3,200 | 17 MP |
| A3 | 11.69 × 16.54 | 3,507 × 4,962 | 2,338 × 3,308 | 17 MP |
| 16x20" | 16 × 20 | 4,800 × 6,000 | 3,200 × 4,000 | 29 MP |
| 18x24" | 18 × 24 | 5,400 × 7,200 | 3,600 × 4,800 | 39 MP |
| 24x36" | 24 × 36 | 7,200 × 10,800 | 4,800 × 7,200 | 78 MP |
Check a photo against every print size at once
Drop in your photo for a per-size verdict at 300 and 200 DPI, with each aspect ratio’s crop already subtracted. Nothing is uploaded — the file is read in your browser.
Drop a pet photo here
JPG, PNG, WebP or iPhone HEIC. You can paste from the clipboard too.
The photo is read on this device and never uploaded.
Which size should you print?
Start from the photo, not the frame. The check above lists every size your photo can fill sharply, and the right print is usually the largest one on that list that suits the wall. A sharp 8x10 looks better than a soft 16x20 from any distance.
Then pick a size that fits an off-the-shelf frame: 5x7, 8x10, 11x14 and 16x20 in the US, A4 and A3 in the UK, Europe and Australia. It matters more than it sounds. A print that needs custom framing often ends up in a drawer instead of on the wall.
Working the other way round — from the file to the sizes — is what the megapixel to print size chart is for, and the most common case by far is what you can print from a 12 MP photo.
Print sizes grouped by aspect ratio
The sizes matter less than the ratios behind them, because the ratio is what decides how much of your photo gets cut away. Two sizes on the same ratio share one crop; two sizes on different ratios do not, which is why a single exported file cannot serve every frame.
- 4:5 — 8x10, 16x20. The volume ratio for pet portraits, and the one most off-the-shelf frames use.
- 3:4 — 12x16, 18x24. The native ratio of most phone cameras, so it crops a phone photo least.
- 2:3 — 24x36. The tall poster ratio. Dramatic, and the most demanding on resolution.
- 5:7 — 5x7. Its own ratio, close to 4:5 but not interchangeable with it.
- 11:14 — 11x14. Slightly narrower than 4:5. A common cause of surprise crops.
- 1:1 — 8x8, 12x12. Square. Crops hardest of all on a portrait-orientation source photo.
- ISO (1:1.414) — A4, A3. The international series. Taller than 4:5, so US-sized artwork does not simply drop in.
A phone photo arrives at 3:4, so it drops straight into 12x16 and 18x24 and loses progressively more toward 4:5, ISO, 2:3 and square. The pet photo editor handles this by taking one subject-aware framing and cropping every ratio from it, so the animal’s face survives all seven.
Why 200 DPI is a real answer, not a cop-out
Print resolution requirements scale with viewing distance. A 5x7 on a desk is inspected from a foot away and genuinely needs 300 DPI. A 24x36 on a wall is viewed from six feet, where 200 DPI is indistinguishable from 300. The larger the print, the more forgiving the requirement — which is fortunate, because large prints are where the pixel demands become unreasonable.
The exception is fur. Close crops of an animal’s face carry thousands of fine high-contrast strands, and those are the first thing to smear when resolution runs short. For a tight head-and-shoulders portrait, bias toward 300 even at large sizes.
Every size in detail
Each size has its own page with the camera requirements, the crop math and the mistakes specific to it.
5x7"
1,500 × 2,100 px at 300 DPI
The small desk and shelf print. Forgiving on resolution, which makes it the safe fallback when the only photo you have is a small one.
8x8"
2,400 × 2,400 px at 300 DPI
Square format, popular for Instagram-style crops and gallery walls. Crops hard on a portrait-orientation source photo.
8x10"
2,400 × 3,000 px at 300 DPI
The classic pet portrait size. Fits standard off-the-shelf frames, so there is no custom framing to order.
A4
2,481 × 3,507 px at 300 DPI
The international equivalent of 8x10. In the UK, EU or Australia this is the size the frames in the shops fit, and it is not interchangeable with 8x10.
11x14"
3,300 × 4,200 px at 300 DPI
The step-up size. Big enough to read as a statement piece, still a standard frame size.
12x12"
3,600 × 3,600 px at 300 DPI
Large square. Common in record-sleeve-style gallery walls and for pairs of pets hung side by side.
12x16"
3,600 × 4,800 px at 300 DPI
A 3:4 ratio, which matches most phone camera sensors exactly. If the source is an unedited iPhone photo, this size crops the least.
A3
3,507 × 4,962 px at 300 DPI
The international large format. Slightly larger than 12x16 and a good deal taller than 11x14, so it needs its own crop rather than a rescale of either.
16x20"
4,800 × 6,000 px at 300 DPI
Where phone photos start to fail. A 12 MP iPhone shot cannot hit 300 DPI here, and this is the size where a soft print starts to show.
18x24"
5,400 × 7,200 px at 300 DPI
Poster scale. Viewed from further away, so 200 DPI is genuinely acceptable here in a way it is not at 8x10.
24x36"
7,200 × 10,800 px at 300 DPI
The largest size worth printing from a photograph. Needs 7200x10800px for a true 300 DPI print — that is a 78 MP camera.
Frame size questions
- What size frame is a pet photo?
- The standard frame sizes for a pet photo are 5x7, 8x10, 11x14, 12x16, 16x20, 18x24 and 24x36 inches, plus A4 and A3 in the UK, Europe and Australia, and 8x8 and 12x12 for square frames. 8x10 and A4 are the most common because they fit off-the-shelf frames.
- What size should I print my pet photo?
- The largest size your photo can fill sharply, within what suits the wall. Most phone photos print well at 5x7 and 8x10; 11x14 and above depends on the photo, so check it before you order. A frame you already own decides the shape as well as the size, because each size crops the photo differently.
- Why do you list both inches and A-series sizes?
- Because in the UK, EU or Australia an "8x10" frame is hard to find, and in the US an A4 frame is. They are close in area but not interchangeable, so print the size your frame actually is rather than substituting one for the other.
- What aspect ratios do pet portrait print sizes use?
- Seven of them across the eleven standard sizes: 4:5 (8x10, 16x20), 3:4 (12x16, 18x24), 2:3 (24x36), 5:7 (5x7), 11:14 (11x14), 1:1 square (8x8, 12x12) and the ISO ratio of roughly 1:1.414 (A4, A3). This is why one exported file cannot serve every size — each ratio crops the photo differently, and a 3:4 phone photo loses the most going to square.
- What is the largest pet portrait I can print from a phone photo?
- A standard 12 MP phone photo (3024x4032 pixels) prints sharply up to about A4 or 8x10 at 300 DPI, and is acceptable framed up to around A3 or 12x16 at 200 DPI. Above that it becomes visibly soft, and 16x20 is where most people start to notice.