4:5 to Pixels
4:5 is Instagram's recommended portrait ratio — it takes up more vertical feed space than a square post. Get exact pixel dimensions below.
--ar 1:1
AI generation sizes
Wallpaper sizes
Print sizes (300 DPI)
Social media sizes reference
Sizes used across major platforms, for context when picking your ratio:
| Platform & placement | Recommended size | Ratio |
|---|---|---|
| Instagram feed post (square) | 1080 × 1080 | 1:1 |
| Instagram portrait post | 1080 × 1350 | 4:5 |
| Instagram / TikTok Story or Reel | 1080 × 1920 | 9:16 |
| YouTube thumbnail | 1280 × 720 | 16:9 |
| Facebook shared image | 1200 × 630 | 1.91:1 |
| X (Twitter) post image | 1600 × 900 | 16:9 |
| LinkedIn post image | 1200 × 627 | 1.91:1 |
| Pinterest Pin | 1000 × 1500 | 2:3 |
How the 4:5 to Pixels works
Choose a ratio
Pick a common preset like 16:9 or 1:1, or type in any custom width and height.
Toggle orientation
Switch between landscape and portrait to flip the ratio instantly.
Copy dimensions or --ar
Grab the exact pixel dimensions from the tables, or copy the ready-made Midjourney --ar parameter.
About this tool
4:5 is a slightly taller-than-square portrait ratio, best known as Instagram's recommended ratio for feed posts because it occupies more vertical space in the feed than a 1:1 square, increasing visibility.
The most common 4:5 export size is 1080×1350 pixels, matching Instagram's own recommendation.
For AI-generated portraits or fashion/product photography-style compositions, 4:5 is a strong middle ground between a square and a fully vertical 9:16 frame.
Frequently asked questions
What size is 4:5 for Instagram?
1080×1350 pixels is Instagram's recommended size for 4:5 portrait feed posts.
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