2:3 Aspect Ratio Calculator + Bulk Resizer
Work out any 2:3 dimension, then resize or crop a whole shoot to match — free, in your browser.
Work out any 2:3 dimension, then resize or crop a whole shoot to match — free, in your browser.
The 2:3 aspect ratio is 3:2 turned vertical — the native portrait shape of every full-frame and APS-C camera, inherited from 35mm film. It is the ratio a 4x6 print expects, which is why photographs shot on a DSLR drop straight into standard photo frames without cropping. It is noticeably taller and narrower than 3:4.
| Resolution | Name | Category | Megapixels | Resize to this size |
|---|---|---|---|---|
| 4000x6000 | Full-Frame Portrait (24MP) | Camera | 24.0 MP | Resize to this — 4000 by 6000 pixels, Full-Frame Portrait (24MP) |
| 2667x4000 | APS-C Portrait | Camera | 10.7 MP | Resize to this — 2667 by 4000 pixels, APS-C Portrait |
| 1200x1800 | 4x6 Print @ 300dpi | 2.2 MP | Resize to this — 1200 by 1800 pixels, 4x6 Print @ 300dpi | |
| 2400x3600 | 8x12 Print @ 300dpi | 8.6 MP | Resize to this — 2400 by 3600 pixels, 8x12 Print @ 300dpi | |
| 3600x5400 | 12x18 Poster @ 300dpi | 19.4 MP | Resize to this — 3600 by 5400 pixels, 12x18 Poster @ 300dpi | |
| 1000x1500 | Web Portrait | Screen | 1.5 MP | Resize to this — 1000 by 1500 pixels, Web Portrait |
| 1080x1620 | Social Portrait | Social | 1.7 MP | Resize to this — 1080 by 1620 pixels, Social Portrait |
| 5464x8192 | 45MP Full-Frame | Camera | 44.8 MP | Resize to this — 5464 by 8192 pixels, 45MP Full-Frame |
The native portrait orientation of Canon, Nikon, Sony, and Fujifilm bodies
The standard drugstore print size — 2:3 fits it with zero cropping
12x18 and 24x36 posters are both 2:3, so one master covers both
Most POD frame and canvas catalogs are built around 2:3
Same proportions, rotated. 3:2 is landscape, 2:3 is portrait. A 6000x4000 file is 3:2; shoot the same camera vertically and you get 4000x6000, which is 2:3.
Because both are 2:3. 35mm film was 36x24mm, digital full-frame copied it, and the 4x6 print size was built around it. It is one of the few places in imaging where the whole chain agrees, so nothing gets cropped.
8x10 is 4:5, which is a squarer shape, so the lab crops your long edge — roughly 17% disappears. If you know a shot is destined for 8x10, frame it loose when you shoot, or crop deliberately rather than letting the printer decide.
At 300 DPI that is 7200x10800 pixels, which is more than most cameras produce. Posters are viewed from further away, so 150 DPI (3600x5400) holds up fine in practice. Do not upscale to hit a number — a clean 150 DPI beats an interpolated 300.
It is taller than the 4:5 maximum, so Instagram will crop it. If you are posting a batch of vertical DSLR shots, resize to 4:5 first so you control what gets cut rather than letting the app take it off the top and bottom.