Feed posts still anchor brand memory-even in a Reels-heavy world. Pick an aspect ratio strategy once, then apply it across campaigns so your grid feels intentional.
Three workhorse aspect ratios
| Ratio | Example export | Strengths |
|---|---|---|
| 1:1 | 1080 × 1080 | Symmetric grid; excellent for product flats and carousels. |
| 4:5 | 1080 × 1350 | Taller in feed-great for people, editorial, text-forward creative. |
| 1.91:1 | 1080 × 566 (approx.) | Cinematic width; mind reduced vertical presence on phones. |
Carousel discipline
Carousels reward narrative:
- Slide 1 = thesis; slides 2–N = evidence, steps, or variations.
- Keep typography size consistent slide-to-slide.
- End with a CTA slide when appropriate (“Save this,” “Comment keyword”).
Grid thumbnails & cohesion
Your profile grid crops to center squares. If logos sit in corners, they may vanish-center-weight key icons.
When to use Reels or Stories instead
Motion + audio solves demos that static feed posts cannot. Pair this guide with Reels sizing and Stories dimensions.
Scheduling QA
- Upload a draft to a test account when possible.
- Check safe zones for in-app product tags.
- Confirm alt text fields are filled for accessibility.
Frequently asked questions
- What is the best size for Instagram feed photos?
- Common professional exports are 1080×1080 (1:1), 1080×1350 (4:5 portrait), and 1080×566 (1.91:1 landscape). 4:5 often uses more feed vertical space on phones; always preview crops in-app.
- Does Instagram still crop 4:5 images?
- Feed presentation can still vary by context (profile grid thumbnails, Explore, ads). Design so critical content survives a mild center crop.
- What about Instagram carousel posts?
- Use a consistent aspect ratio per carousel when possible-mixed ratios can feel disjointed. Verify swipe order and cover tile on your grid.
- How does this relate to Reels?
- Feed posts and Reels are different surfaces. Feed still images do not replace vertical 9:16 video specs-see the Reels guide for short-form video dimensions.