Instagram Aspect Ratio Calculator
Use this Instagram calculator to switch quickly between feed, Story, and Reels dimensions. It helps you avoid crop surprises before you upload.
Instagram supports multiple content shapes in one account strategy, including 4:5 portrait feed posts, 1:1 square, and 9:16 full-screen placements. Choosing the right shape by placement improves visual consistency and helps key content stay visible.
Need a full cross-platform overview first? Visit the social media aspect ratio hub.
Calculated Ratio
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Instagram Format Reference Table
Use this reference when you are planning exports or validating creative before upload. These ratios cover common organic workflows for Instagram and help you avoid accidental crops.
| Format | Ratio | Pixels | Notes |
|---|---|---|---|
| Feed photo (portrait) | 4:5 | 1080x1350 | Strong feed occupancy |
| Feed photo (square) | 1:1 | 1080x1080 | Balanced default |
| Feed photo (landscape) | 1.91:1 | 1080x566 | Wide crop behavior |
| Stories | 9:16 | 1080x1920 | Full-screen display |
| Reels | 9:16 | 1080x1920 | Same as Stories baseline |
| Carousel | 4:5 or 1:1 | 1080x1350 or 1080x1080 | Keep slide ratio consistent |
| Profile photo | 1:1 | 320x320 displayed | Circular crop in profile UI |
Tip: on smaller screens, swipe horizontally to view the full table.
Tips for Better Instagram Publishing
- Use 4:5 for feed-first growth because it often provides stronger vertical presence than 1:1.
- Keep Reel and Story text inside safe central zones to reduce overlap from UI controls.
- When building carousels, keep all slides in the same ratio to prevent visual jumps.
It is often faster to create a platform-first master rather than forcing one asset into every ratio. Use this calculator to create intentional variants for feed, story, reel, and thumbnail surfaces.
If you run a cross-platform content calendar, pair this page with related calculators so editors can move from one ratio to the next without rebuilding math manually.
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Frequently Asked Questions about Instagram Ratios
What is the best aspect ratio for Instagram feed posts?
4:5 is often preferred for portrait feed posts because it uses more vertical feed space.
Do Instagram Stories and Reels use the same ratio?
Yes. Both are usually built in 9:16 at 1080x1920.
Can I post 1.91:1 images on Instagram?
Yes, landscape feed posts are supported, but they occupy less vertical space than portrait posts.
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