Ratio & Crop specification
Crop Image 4:5 Aspect Ratio (Instagram Portrait)
The 4:5 aspect ratio is the optimal vertical photo format for Instagram feed posts. It occupies the maximum vertical screen space on mobile phones, driving significantly higher engagement than landscape or square pictures.
Portal context: Instagram and Facebook mobile feed posts.
Size ceiling≤ 1000 KB
Target width1080 px
Target height1350 px
Output formatJPEG (.jpg)
Security100% In-browser
Select a photo or drop file here
Accepts JPG, PNG, and WebP portraits, document scans, or signatures.
WidthAuto if empty
px
HeightAuto if empty
px
Target maximum sizeStrict limit
KB
Centered crop is applied if width and height are both set.
Step-by-step preparation guide.
Follow these 4 simple steps to generate an approved file without errors.
STEP 01
Upload vertical or camera photo
Drop your source photograph into the workspace.
STEP 02
Auto-format 4:5
The tool aligns the crop box to a 4:5 vertical proportion.
STEP 03
Download ready JPG
Save and post directly to your social feed.
Portal dos and don'ts checklist
✓ What to do
- Fill the vertical frame with your subject for maximum mobile screen dominance.
✕ What to avoid
- Do not add white letterboxing; crop directly to 4:5.
Troubleshooting portal upload errors
Q: Why is 4:5 better than square on Instagram?
A 4:5 portrait takes up nearly the entire mobile screen when users scroll, whereas 1:1 leaves empty space above and below.
Frequently asked questions
What pixel size corresponds to 4:5?
1080 pixels wide by 1350 pixels high is the digital social standard.
Other related tools & sizes
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