Photo print and frame sizes
Common photo prints are 4 × 6, 5 × 7 and 8 × 10 in. Only 4 × 6 has the 3:2 shape of a camera photo; 8 × 10 cuts 16.7% off its long side.
Enter the width and height of a photo to see what each print size cuts off and its resolution.
| Print (in) | Shape | Cut off | DPI |
|---|---|---|---|
| 3.5 × 5 | 7:10 | — | — |
| 4 × 6 | 2:3 | — | — |
| 5 × 7 | 5:7 | — | — |
| 6 × 8 | 3:4 | — | — |
| 8 × 8 | 1:1 | — | — |
| 8 × 10 | 4:5 | — | — |
| 8 × 12 | 2:3 | — | — |
| 11 × 14 | 11:14 | — | — |
| 12 × 12 | 1:1 | — | — |
| 12 × 16 | 3:4 | — | — |
| 12 × 18 | 2:3 | — | — |
| 16 × 20 | 4:5 | — | — |
| 16 × 24 | 2:3 | — | — |
| 20 × 30 | 2:3 | — | — |
| 24 × 36 | 2:3 | — | — |
How to use the crop check
- Find the width and height of your photo in pixels. Phones and computers show them in the photo’s details, information or properties.
- Enter both numbers and check. Portrait or landscape does not matter; the photo is turned to match each print.
- Each row shows how much of the photo a print cuts off when it is filled edge to edge, and the resolution the print gets. Choose a size that cuts off nothing, or crop the photo yourself before ordering so that you decide what is lost.
Your photo is not uploaded: only the two numbers are used, on your device. Without JavaScript the crop check is unavailable; the tables below still work.
How print shapes differ
A print fills its paper, so a photo of another shape loses a strip along one side. Many cameras take 3:2 photos and many phones 4:3, while prints are also 4:5, 5:7 or square. The share that is cut off follows from the two ratios: a 3:2 photo (1.5) on an 8 × 10 (1.25) keeps 1.25 ÷ 1.5 = 83.3% of its long side and loses 16.7%.
Print sizes are the nominal sizes photo labs sell, not a standard. The list and the grouping by shape follow a US photo lab; centimetres are conversions.
| Print (in) | Print (cm) | Shape | Pixels for 300 DPI |
|---|---|---|---|
| 3.5 × 5 | 8.9 × 12.7 | 7:10 | 1050 × 1500 |
| 4 × 6 | 10.2 × 15.2 | 2:3 | 1200 × 1800 |
| 5 × 7 | 12.7 × 17.8 | 5:7 | 1500 × 2100 |
| 6 × 8 | 15.2 × 20.3 | 3:4 | 1800 × 2400 |
| 8 × 8 | 20.3 × 20.3 | 1:1 | 2400 × 2400 |
| 8 × 10 | 20.3 × 25.4 | 4:5 | 2400 × 3000 |
| 8 × 12 | 20.3 × 30.5 | 2:3 | 2400 × 3600 |
| 11 × 14 | 27.9 × 35.6 | 11:14 | 3300 × 4200 |
| 12 × 12 | 30.5 × 30.5 | 1:1 | 3600 × 3600 |
| 12 × 16 | 30.5 × 40.6 | 3:4 | 3600 × 4800 |
| 12 × 18 | 30.5 × 45.7 | 2:3 | 3600 × 5400 |
| 16 × 20 | 40.6 × 50.8 | 4:5 | 4800 × 6000 |
| 16 × 24 | 40.6 × 61.0 | 2:3 | 4800 × 7200 |
| 20 × 30 | 50.8 × 76.2 | 2:3 | 6000 × 9000 |
| 24 × 36 | 61.0 × 91.4 | 2:3 | 7200 × 10800 |
European labs name prints in centimetres, but most of them are inch sizes: a 10 × 15 print is 102 × 152 mm, which is 4 × 6 in.
| Name (cm) | Size (mm) | Long ÷ short | Inch print |
|---|---|---|---|
| 9 × 13 | 89 × 127 | 1.43 | 3.5 × 5 in |
| 10 × 15 | 102 × 152 | 1.49 | 4 × 6 in |
| 13 × 18 | 127 × 178 | 1.40 | 5 × 7 in |
| 15 × 20 | 150 × 200 | 1.33 | — |
| 20 × 30 | 203 × 305 | 1.50 | 8 × 12 in |
| 30 × 40 | 305 × 406 | 1.33 | 12 × 16 in |
| 40 × 60 | 406 × 610 | 1.50 | 16 × 24 in |
Frame sizes and mat openings
The size of a frame is its inside size: the glass, the mat and the backing. An 8 × 10 frame holds an 8 × 10 print without a mat, or a smaller print with one.
A mat opening is cut slightly smaller than the print so that the mat holds the print in place. Ready-made frames usually cut it 1/4 in smaller on each side, so an 8 × 10 print shows through a 7 1/2 × 9 1/2 in opening. Some framers cut only 1/8 in, which gives 7 3/4 × 9 3/4 in. The width of the mat border is the frame minus the opening, halved.
| Frame (in) | Mat opening (in) | Print (in) |
|---|---|---|
| 8 × 10 | 4 1/2 × 6 1/2 | 5 × 7 |
| 11 × 14 | 7 1/2 × 9 1/2 | 8 × 10 |
| 16 × 20 | 10 1/2 × 13 1/2 | 11 × 14 |
| 20 × 24 | 15 1/2 × 19 1/2 | 16 × 20 |
| 24 × 36 | 19 1/2 × 29 1/2 | 20 × 30 |
| 30 × 40 | 21 1/2 × 31 1/2 | 22 × 32 |
Worked example: a phone photo of 4032 × 3024 pixels
The photo is 4:3: its long side is 4032 ÷ 3024 = 1.33 times its short side.
- 6 × 8 in is also 4:3 and cuts nothing off, at 4032 ÷ 8 = 504 DPI.
- 4 × 6 in is 1.5: the photo keeps 4032 ÷ 1.5 = 2688 of its 3024 pixels across and loses 336, which is 11.1% of the short side. It prints at 4032 ÷ 6 = 672 DPI.
- 5 × 7 in is 1.4 and loses 144 pixels, 4.8% of the short side.
- 8 × 10 in is 1.25: the photo keeps 3024 × 1.25 = 3780 of its 4032 pixels along and loses 252, 6.3% of the long side. It prints at 3024 ÷ 8 = 378 DPI.
Framed in an 11 × 14 frame with a ready-made mat, the 8 × 10 print shows through a 7 1/2 × 9 1/2 in opening, with borders of (11 − 7 1/2) ÷ 2 = 1 3/4 in at the sides and 2 1/4 in at the top and bottom.
Common mistakes
- Ordering 8 × 10 prints of camera photos without checking the crop: heads and feet near the edge are cut off.
- Buying a mat with an opening as large as the print. The print falls through; the opening must be smaller.
- Measuring a frame on the outside. Frame sizes name the inside, the size of the picture it holds.
- Expecting a 20 × 30 cm print to fit an A4 frame. It is 203 × 305 mm, 8 mm longer than A4’s 297 mm.
- Enlarging a small image. A photo of 1200 × 800 pixels reaches 300 DPI only up to 4 × 2.7 in; filled to 8 × 10 in it gets 100 DPI.
Sources and checks
The values in the chart are the sizes published by the organisations listed below. Last checked against the sources on September 29, 2026.
Print sizes are the nominal sizes photo labs sell. The shape is the ratio of the two sides in lowest terms; centimetres are conversions at 2.54 cm per inch, and the pixels are those needed for 300 DPI.
Photo sizes named in centimetres are mostly inch sizes: a 10 × 15 print is 102 × 152 mm, which is 4 × 6 in. The ratio column is the long side divided by the short side.
Mat openings are a framer's convention, not a standard. The frame table is one framer's; ready-made frames from other makers can differ by 1/4 in.
Used for: The print sizes in inches and their grouping by shape: 2:3 (4 × 6 to 24 × 36), 3:4, 4:5, 5:7, 7:10, 11:14 and square.
Used for: Millimetre sizes of the photo formats named in centimetres: 9 × 13 is 89 × 127 mm, 10 × 15 is 102 × 152 mm, 13 × 18 is 127 × 178 mm, 15 × 20 is 150 × 200 mm, 20 × 30 is 203 × 305 mm, 30 × 40 is 305 × 406 mm and 40 × 60 is 406 × 610 mm.
Used for: The R names (4R is 4 × 6 in, 5R is 5 × 7 in) and their millimetre sizes, used to check the metric table.
Used for: Frame sizes with a mat for common print sizes and their mat openings, and that off-the-shelf frames cut the mat window 1/4 in smaller than the print while this framer cuts 1/8 in smaller up to 18 × 24 in.
Used for: Why the window is smaller than the image, and the crop of 1/4 in on all four sides for standard off-the-shelf frames.
Used for: The size of a frame is its inside dimension, the size of the glass, mat and backing, not the outside of the moulding.
Frequently asked questions
- What are the standard photo print sizes?
- The usual sizes are 4 × 6, 5 × 7 and 8 × 10 in, then 8 × 12, 11 × 14, 12 × 18, 16 × 20, 20 × 30 and 24 × 36 in for enlargements. In centimetres, 10 × 15, 13 × 18 and 20 × 30 are the same prints under metric names.
- What size frame do I need for an 8 × 10 photo?
- An 8 × 10 frame holds it without a mat. With a mat, a ready-made 11 × 14 frame is the usual choice; its mat opening is 7 1/2 × 9 1/2 in, which overlaps the print by 1/4 in on each side.
- Why is my photo cropped when I print it at 8 × 10?
- An 8 × 10 print has the shape 4:5, while most camera photos are 3:2 and phone photos 4:3. Filling the print cuts 16.7% off the long side of a 3:2 photo and 6.3% off a 4:3 photo.
- How big is an A4 frame in inches?
- An A4 frame holds a sheet of 210 × 297 mm, which is 8.27 × 11.69 in. An 8 × 10 in print fits inside it; a 20 × 30 cm print, 203 × 305 mm, is 8 mm too long.
- How many pixels do I need for an 8 × 10 print?
- For 300 DPI, 2400 × 3000 pixels. Most phone and camera photos have more; the crop check shows the resolution of your photo at each size after cropping.
Last updated: September 29, 2026