How to use the 5:4 Aspect Ratio calculator
Choose a mode
Resize by Aspect Ratio keeps 5:4. Calculate Aspect Ratio reads the ratio from two pixel sides.
Enter the numbers
The form opens at 5:4. Change the width or the height, or type both pixel sides.
Read the result
A width of 1280 is 1024 tall at 5:4.
Summarize with
| Size | MP | Name | |
|---|---|---|---|
| 720×576 | 0.4147 | PAL SD (576i/p) | |
| 1280×1024 | 1.3107 | SXGA |
SXGA monitors that look squarer than a TV
5:4 appears on some large-format stills and on VESA SXGA 1280×1024 monitors. It is a slightly tall landscape next to 4:3.
VESA SXGA 1280×1024 is the computer-era reason this landscape ratio still has a resolution article. It is slightly taller than 4:3 XGA 1024×768, which is why older office LCDs look “squarer” than a TV.
1280×1024 is the computer-era reason anyone still searches this fraction. It is not a 4:3 XGA panel with a few extra rows renamed. The 5:4 aspect ratio is 1.25:1; 4:3 is about 1.33:1. On a desk you notice it as a taller picture, not as a different megapixel class.
Sheet film, not a phone sensor
Sheet film and view cameras used 5:4 and 4:5. PC monitors briefly shipped 1280×1024 as a “large” 5:4 office panel before 16:9 laptops took over.
View-camera 5×4 inch sheet film is the photographic reason. Digital backs that output 5:4 are uncommon now; most people meet the ratio as a monitor mode, not a sensor.
Do not land here for an Instagram portrait
Portrait 4:5 is the Instagram feed maximum height. Do not treat 5:4 and 4:5 as the same page.
If a 1920×1080 file really must become 5:4, the trim is 1350×1080 and the padded canvas is 1920×1536. Most people who type “5:4” after a social brief actually wanted 4:5. Check the orientation before you export.
Frequently asked questions
Is 1280×1024 exactly 5:4?
Yes. Divide by 256 and you get 5:4. It is the SXGA timing, slightly taller than 1024×768.
Is 5:4 the Instagram crop?
No. Instagram’s tall feed photo is 4:5 (1080×1350). The numbers are swapped and the jobs are different. This 5:4 aspect ratio is the landscape one.
Do digital cameras still shoot 5:4?
Rarely. You will meet it as a monitor mode or as a large-format scan, not as a default phone sensor.
What do I get from 1920×1080?
A 5:4 trim of 1350×1080, or a padded canvas of 1920×1536. Open 4:5 instead if the destination is a portrait feed.