PHOTO SIZES · PIXELS · PRINT PPI

Print size to pixels calculator & photo size chart

Choose a common print size or enter your own width and height. Calculate the image pixels needed at a selected PPI and check the important crop and bleed decisions before sending your file to print.

Choose your finished print

These dimensions describe the final trimmed image, without bleed or optional borders.

Required image pixels

Each axis rounds up so the requested PPI is not undercut by pixel rounding.

Minimum pixels at 300 PPI

2,400 × 3,000 px

8 × 10 inches · 4:5 · 7.20 megapixels

Quick conversion for your selected print size
Image density	Pixels required
72 PPI	576 × 720 px
96 PPI	768 × 960 px
150 PPI	1,200 × 1,500 px
240 PPI	1,920 × 2,400 px
300 PPI	2,400 × 3,000 px

Calculated pixels cannot guarantee sharpness, available source detail, print-lab acceptance, or printer margins.

Photo print size chart at 150 and 300 PPI

This table compares everyday prints, nine less-common sizes, A4 and US Letter in one place. Values are the minimum whole-pixel raster for the finished trim. The 150 and 300 PPI columns are examples, not universal print requirements; bleed is excluded.

Pixels needed for standard photo prints and A4
Print size	Aspect ratio	150 PPI (px)	300 PPI (px)
2×2	1:1	300 × 300	600 × 600
3×5	3:5	450 × 750	900 × 1,500
4×4	1:1	600 × 600	1,200 × 1,200
5×5	1:1	750 × 750	1,500 × 1,500
8×8	1:1	1,200 × 1,200	2,400 × 2,400
4×6	2:3	600 × 900	1,200 × 1,800
5×7	5:7	750 × 1,050	1,500 × 2,100
8×10	4:5	1,200 × 1,500	2,400 × 3,000
US Letter (8.5×11)	17:22	1,275 × 1,650	2,550 × 3,300
11×14	11:14	1,650 × 2,100	3,300 × 4,200
12×18	2:3	1,800 × 2,700	3,600 × 5,400
16×20	4:5	2,400 × 3,000	4,800 × 6,000
20×30	2:3	3,000 × 4,500	6,000 × 9,000
24×36	2:3	3,600 × 5,400	7,200 × 10,800
A4 (mm)	70:99	1,241 × 1,754	2,481 × 3,508

A4 measures 210 × 297 mm (trim). At 300 PPI, 210 ÷ 25.4 × 300 = about 2,480.315 pixels: to meet at least 300 PPI the width rounds up to 2,481 px, and the height to 3,508 px. A chart rounding to the nearest pixel may show 2,480 × 3,508 instead. Always follow an exact printer raster requirement when provided.

PPI and printer DPI are different

Image PPI means pixels assigned to each printed inch. Printer DPI describes the machine’s ink or toner dots. Calculate pixels = print inches × image PPI, independently for width and height. Changing a file’s PPI metadata from 72 to 300 without resampling does not add captured detail or make an out-of-focus photo sharp.

Read the original Adobe print-resolution reference and printer DPI explanation. For large posters, viewing distance, subject and the provider’s process matter more than simply choosing the highest number.

Crop to the shape before resizing

11 × 14 has an actual 11:14 ratio, not 4:5. A 3 × 5 print is 3:5 and usually crops a 3:2 camera image. Square 2 × 2, 4 × 4, 5 × 5 and 8 × 8 prints need square framing. A 12 × 18 or 20 × 30 print is 2:3 portrait, matching a 3:2 photograph when the orientation is compatible.

Fit preserves the image but can leave unfilled paper; Fill covers the paper while cropping the edges. For an existing image, use the effective-PPI and fit/fill checker to assess a specific source, or the crop-loss calculator. Never stretch one dimension to force a print ratio.

Bleed adds pixels beyond the trim

Our calculator returns dimensions for the finished print. If a commercial printer specifies 0.125 in bleed per edge, an 8 × 10 in print requires artwork extending to 8.25 × 10.25 in, or 2,475 × 3,075 px at 300 PPI. Artwork outside the cut line is deliberately trimmed away; keep faces and essential text inside the separately specified safe margin.

Bleed is not a universal requirement. Confirm with the print provider; see Adobe’s trim and bleed guidance.

2 × 2 is not automatically a passport photo

2 × 2 inches at 300 PPI is 600 × 600 pixels, but print dimensions alone cannot validate an ID or passport photo. U.S. passport photo applications have additional subject, composition and submission requirements, and other countries vary. Check the U.S. Department of State passport-photo instructions or your issuing authority’s requirements, rather than relying on this pixel-size calculator for document compliance.

8 × 10 photo: how much of a 3:2 image is lost?

An 8 × 10 inch print is 4:5 portrait (5:4 landscape), while a typical landscape camera photo is 3:2. Take a 6,000 × 4,000 px landscape photo: to fill a landscape 10 × 8 print, keep the full 4,000-pixel height and crop the width to 5,000 px. This removes 500 px on each side with a centered crop—about 16.7% of the source area. The retained 5,000 × 4,000 image still supplies 500 PPI at 10 × 8 inches. Reposition a crop when a face is near the edge, or choose Fit and accept borders rather than cutting it off.

For any other image, compare Fit and Fill at the actual print size rather than trusting only the print-size pixel table. The calculation cannot account for the lab’s automatic cropping or trimming.

A4: trim size, shape and rounding

A4 is 210 × 297 mm, a trimmed paper size under the ISO 216 A-series standard. It is not an exact 3:2, 4:3 or US Letter canvas. The calculator gives minimum pixel dimensions at your chosen PPI; the 300 PPI A4 result is 2,481 × 3,508 px because both axes round upward. Some production charts round to the nearest pixel and list 2,480 × 3,508 px. Neither convention automatically includes printer margins, cut tolerance or full-bleed artwork.

For an A4 design requiring 3 mm bleed on every edge, prepare a 216 × 303 mm artwork area before converting to pixels, and keep important text inside the separate safe area your print provider specifies. A photo framed at 3:2 may need cropping on A4; fitting without crop instead leaves unused paper. See ISO 216 trimmed-paper scope and Adobe’s trim/bleed distinction.

24 × 36 poster: choose PPI from real source detail

At 300 PPI, a 24 × 36 inch poster requires 7,200 × 10,800 px (77.76 MP). At 150 PPI, it needs 3,600 × 5,400 px (19.44 MP); 240 PPI requires 5,760 × 8,640 px (49.77 MP). These are raster requirements, not automatic promises of photographic sharpness.

A 3:2 landscape camera image can match a 36 × 24 landscape poster without an aspect-ratio crop. If you want the portrait 24 × 36 layout, rotate the source only when its composition makes sense; otherwise deliberately reframe it. Large wall prints are often seen farther away than handheld photos, so compare the existing pixel count, sharpness and viewing distance before upscaling. Ask the lab for a small proof at the intended effective PPI before ordering a costly enlargement.

US passport photos: square pixels are only the first check

A 2 × 2 inch photo produces 600 × 600 px at 300 PPI for a physical print. This is a size conversion, not proof that an application will accept the photo. Actual U.S. passport instructions also govern face placement, image quality, background, recency and submission format; requirements for an online file and a printed photo can differ. Check the U.S. Department of State’s current passport-photo instructions before taking, editing or submitting an image. Do not assume a 2 × 2 inch example applies to a passport issued by another country.