What resolution do you need for a 16x20" pet portrait?
A 16x20" pet portrait needs 4,800 × 6,000 pixels for a true 300 DPI print, or 3,200 × 4,000 pixels at a more forgiving 200 DPI. That is about a 29 MP camera if the photo needs no cropping.
Where phone photos start to fail. A 12 MP iPhone shot cannot hit 300 DPI here, and this is the size that generates refund requests.
- Inches
- 16 × 20
- Aspect ratio
- 4:5
- Pixels at 300 DPI
- 4,800 × 6,000
- Pixels at 200 DPI
- 3,200 × 4,000
Check your customer’s photo against 16x20"
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Will a phone photo print at 16x20"?
Here is where the cameras your customers actually own land at this size, with the crop to 4:5 already accounted for.
| Source | Pixels | DPI at 16x20" | Verdict |
|---|---|---|---|
| iPhone main camera, 12 MP | 3,024 × 4,032 | 189 | Too small |
| iPhone 48 MP ProRAW / HEIF Max | 6,048 × 8,064 | 378 | Prints sharp |
| Recent Samsung Galaxy, 12 MP | 3,000 × 4,000 | 187 | Too small |
| Photo sent through WhatsApp | 1,200 × 1,600 | 75 | Too small |
| Instagram download | 1,080 × 1,350 | 67 | Too small |
| Entry-level DSLR, 24 MP | 4,000 × 6,000 | 250 | Acceptable framed |
Common mistakes at 16x20"
- Dividing raw pixels by inches. It ignores the crop to 4:5 and overstates the DPI, sometimes badly.
- Upscaling and calling it 300 DPI. Resampling a small file up to 4,800×6,000 produces a file with the right dimensions and none of the detail. The metadata says 300 DPI; the print says otherwise.
- Forgetting the DPI metadata entirely. Several print-on-demand services read the DPI field and will scale the image to suit it. A file with the right pixels but a 72 DPI tag can come back wrong.
- Accepting a messaging-app copy. WhatsApp and Messenger recompress to roughly 1200px on the long edge, which is 75 DPI at 16x20". Always ask for the original.
Every size, side by side
| 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 |
16x20" questions
- What resolution do you need for a 16x20" pet portrait?
- A 16x20" print needs 4,800x6,000 pixels for a true 300 DPI result, or 3,200x4,000 pixels at a more forgiving 200 DPI. That is roughly a 29 MP camera if the photo needs no cropping at all.
- Can an iPhone photo print at 16x20"?
- A standard 12 MP iPhone photo is 3024x4032 pixels, which gives about 189 DPI at 16x20" after cropping to the 4:5 aspect ratio. That is below 200 DPI, so this size should not be sold from a standard iPhone photo. Ask for a 48 MP capture or offer a smaller size.
- What aspect ratio is 16x20"?
- 16x20" is 4:5 (16 by 20 inches). A phone photo is 3:4, so some cropping is required to reach 4:5, which is why the effective DPI is lower than raw pixels suggest.
- Do I need to add bleed to a 16x20" print file?
- Only if your print provider asks for it. When they do, the standard is 0.125 inches on every edge, which makes the file 4,875x6,075 pixels at 300 DPI. Keep anything important well inside that margin, because the bleed area gets trimmed off.