- Instagram Feed ads perform best at 4:5 (1440 × 1800 px), taking up roughly 25% more vertical screen space than square formats.
- Instagram Stories ads need 9:16 at 1080 × 1920 px to fill the fullscreen placement without black bars.
- Instagram Reels ads use 9:16 at 1440 × 2560 px and have a larger bottom safe zone (35%) than Stories (20%).
- Safe zones differ by placement — text placed outside them gets hidden under profile icons and CTA buttons.
- One creative size does not fit all placements. Resize for each one or risk poor delivery.
- Coinis Revise Smart Resize outputs the correct dimensions for every Instagram placement in one click.
Why Size Matters for Instagram Ads
Wrong dimensions break your ad before anyone reads your copy.
How wrong dimensions affect performance
Instagram crops images that don't match placement specs. Key messages get cut off. Logos disappear. The creative looks unfinished, and performance suffers.
Why different placements need different aspect ratios
Feed, Stories, Reels, and Explore each occupy different screen space. Feed is a scroll. Stories and Reels are fullscreen. Each format needs its own canvas.
Safe zones and text overlay best practices
Every placement has a safe zone. Profile icons and CTA buttons cover the edges of your image. Put text or logos outside that zone and they vanish. Design for the safe zone on every placement.
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Instagram Feed Ads: 4:5 Aspect Ratio
4:5 dominates the Feed scroll. It's taller, it takes up more screen, and it holds attention longer.
Recommended specs: 1440 × 1800 px
Per Meta's Ads Guide, the recommended resolution for Instagram Feed image ads is 1440 × 1800 px at 4:5. Formats: JPG or PNG. Maximum file size: 30 MB.
Why 4:5 takes up more screen space
4:5 occupies roughly 25% more vertical screen space than a square 1:1 creative. More screen means more time in view before the next post appears.
Technical minimums and maximums
Minimum resolution for 4:5 is 600 × 750 px. Meta applies a 3% aspect ratio tolerance. Anything outside that range risks cropping.
Safe zone for text and logos
Keep critical elements away from the very top and bottom edges. The profile icon sits at the top. The CTA button anchors the bottom. Keep your text and logos in the middle band.
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Instagram Stories Ads: 9:16 Aspect Ratio
Stories take over the entire screen. Your creative needs to fill it.
Recommended specs: 1080 × 1920 px
Per Meta's Business Help Center, the recommended resolution for Instagram Stories ads is 1080 × 1920 px. Minimum resolution is 600 × 1067 px. Maximum file size: 30 MB. Formats: JPG or PNG.
Fullscreen vertical format requirements
Non-vertical creatives display with black bars in Stories. They look out of place immediately. Use 9:16 to fill the frame correctly.
Safe zone: 14% top, 20% bottom
Meta specifies a top safe zone of approximately 14% (around 250 px) and a bottom safe zone of approximately 20% (around 340 px). All text and logos belong inside those boundaries.
Flexible dimensions
Stories technically accept ratios from 1.91:1 to 4:5. But 9:16 is the right choice for the fullscreen experience. Other ratios add borders and reduce impact.
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Instagram Reels Ads: 9:16 Aspect Ratio
Reels ads share the 9:16 ratio with Stories but have more aggressive safe zones.
Recommended specs: 1440 × 2560 px
Per Meta's Ads Guide for Instagram Reels, the recommended resolution is 1440 × 2560 px. Maximum file size: 30 MB.
Fullscreen vertical format
Reels ads display fullscreen inside the Reels feed. Any non-9:16 creative stands out immediately as an ad that wasn't built for the placement.
Safe zone: 14% top, 35% bottom, 6% sides
The Reels safe zone is larger than Stories. Top: approximately 14%. Bottom: approximately 35%. Sides: approximately 6% each. That bottom zone is large. Price callouts and headlines placed there will be covered.
How Reels specs differ from Stories
Reels recommends a higher resolution (1440 × 2560 px) than Stories (1080 × 1920 px). The bottom safe zone is also significantly larger. Start with a high-resolution asset and respect the zones.
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Instagram Explore Ads: 9:16 Aspect Ratio
Explore ads appear in the discovery feed and display like Feed ads.
Recommended specs: minimum 1080 × 1080 px
Per Meta's Ads Guide for Instagram Explore, the minimum resolution is 1080 × 1080 px. The placement uses a 9:16 aspect ratio. Maximum file size: 30 MB.
How Explore ads display vs. Feed ads
Explore ads render in the same format as Feed ads. A 4:5 or 9:16 asset transfers well here without extra resizing.
Safe zone guidelines
Follow the same safe zone approach as Feed. Keep text and logos clear of the top and bottom edges where UI elements sit.
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Common Size Mistakes and How to Avoid Them
Most sizing failures are simple to prevent.
Using the same size for all placements
A Feed 4:5 image stretched to 9:16 Stories looks wrong. Resize each creative for each placement. Always.
Ignoring safe zones for text and logos
Design tools won't warn you when text overlaps an Instagram CTA button. You have to check manually, or use a tool that handles it automatically.
Uploading low-resolution images
The minimum for Feed is 600 × 750 px. Anything below risks rejection or blurry rendering. Start at 1440 × 1800 px and scale down as needed.
File size and format best practices
Use JPG or PNG. Stay under 30 MB. Compressed JPGs load faster and retain visible quality at ad sizes.
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How Coinis Revise Makes Resizing Effortless
Resizing manually across four placements takes time. Coinis Revise handles it in one click.
Smart Resize automatically adapts to every placement
Smart Resize reads your source image and outputs the correct dimensions for Feed, Stories, Reels, and Explore. No manual cropping. No spec-checking.
One-click optimization for Feed, Stories, Reels, Explore
Upload once. Select your placements. Revise generates each size with safe zones respected.
Maintain quality while hitting exact dimensions
AI Upscale keeps images sharp when you're resizing up from a smaller source file. Your 1:1 square won't look soft at 9:16.
Save time on manual resizing across campaigns
Running multiple campaigns means dozens of creative variants. Smart Resize cuts that down from hours to seconds.
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Or skip the steps.
Coinis Revise edits any ad image with AI. Move text. Change text. Swap colors. Erase objects. Translate to any language. One click each.
No design skills. No Photoshop. One click.
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Frequently Asked Questions
What is the best image size for Instagram Feed ads?
The recommended size for Instagram Feed image ads is 1440 × 1800 px at a 4:5 aspect ratio, per Meta's Ads Guide. The minimum is 600 × 750 px. Use JPG or PNG and keep the file under 30 MB.
What size do I need for Instagram Stories ads?
Instagram Stories ads work best at 9:16 (1080 × 1920 px recommended, 600 × 1067 px minimum). The placement is fullscreen vertical. Leave approximately 14% of the top and 20% of the bottom free of text and logos to avoid covering them with Instagram UI elements.
Are Instagram Reels and Stories ads the same size?
Both use the 9:16 aspect ratio, but Reels recommends a higher resolution (1440 × 2560 px) than Stories (1080 × 1920 px). Reels also has a larger bottom safe zone (approximately 35% vs 20% for Stories), so keep important content higher in the frame.
Do I need a different image for every Instagram ad placement?
Yes. Feed, Stories, Reels, and Explore each have different recommended aspect ratios and safe zones. Using one image across all placements typically results in cropping, misplaced text, or poor visual quality. Coinis Revise Smart Resize generates the correct size for each placement from a single source image.