5:4 Aspect Ratio Calculator + Bulk Resizer
Work out any 5:4 dimension, then resize or crop a whole folder of images to match — free, in your browser.
Work out any 5:4 dimension, then resize or crop a whole folder of images to match — free, in your browser.
The 5:4 aspect ratio is a gently wide rectangle, almost square. It is the shape of an 8x10 print, the classic large-format film standard, and the old 1280x1024 monitors that dominated offices in the early 2000s. Rotate it and you get 4:5 — the same shape Instagram now favours, which is a pleasant accident of history.
| Resolution | Name | Category | Megapixels | Resize to this size |
|---|---|---|---|---|
| 3000x2400 | 10x8 Print @ 300dpi | 7.2 MP | Resize to this — 3000 by 2400 pixels, 10x8 Print @ 300dpi | |
| 1280x1024 | SXGA Monitor | Screen | 1.3 MP | Resize to this — 1280 by 1024 pixels, SXGA Monitor |
| 2560x2048 | QSXGA | Screen | 5.2 MP | Resize to this — 2560 by 2048 pixels, QSXGA |
| 4500x3600 | 15x12 Print @ 300dpi | 16.2 MP | Resize to this — 4500 by 3600 pixels, 15x12 Print @ 300dpi | |
| 6000x4800 | Large Format Scan | Camera | 28.8 MP | Resize to this — 6000 by 4800 pixels, Large Format Scan |
| 1500x1200 | Web Landscape | Screen | 1.8 MP | Resize to this — 1500 by 1200 pixels, Web Landscape |
| 2000x1600 | Gallery Image | Screen | 3.2 MP | Resize to this — 2000 by 1600 pixels, Gallery Image |
| 7500x6000 | 25x20 Print @ 300dpi | 45.0 MP | Resize to this — 7500 by 6000 pixels, 25x20 Print @ 300dpi |
The standard portrait print and frame size, in landscape orientation
4x5 and 8x10 view cameras produce this ratio natively
1280x1024 SXGA panels, still common in industrial and POS systems
A near-square crop that reads as deliberate and formal on a wall
Yes. 8x10 simplifies to 4:5 in portrait, and 10x8 is 5:4 in landscape. Same shape, different orientation — which is why an 8x10 frame takes a 4:5 photo perfectly.
It is a genuine oddity. Most CRTs of that era were 4:3, but 1280x1024 is 5:4, so images were subtly stretched on many setups. It survived because the resolution was convenient in memory terms, not because the shape made sense.
About 17% off the long edge. This is the classic frustration of printing DSLR shots at 8x10 — the camera gives you 3:2 and the frame wants 5:4. Crop it yourself so you choose what goes, rather than letting the print lab center-crop.
2400x3000 pixels at 300 DPI. At 200 DPI you would need 1600x2000, which is still acceptable for a print you hold at arm's length. Below that, fine detail starts to mush.
It is a quiet, formal shape — close enough to square to feel composed, wide enough not to feel cramped. Large-format photographers have used it for a century. It suits still life and portraiture far better than sweeping landscapes.