Quick answer: Instagram Feed needs 4:5 at 1440 x 1800 px. Stories and Reels need 9:16. Start big, check safe zones, preview before launch. Or let Coinis Revise Smart Resize handle all three placements at once.
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Why Instagram Ad Size Matters
Wrong dimensions get your ad auto-cropped. That means cut-off logos, clipped headlines, and wasted budget.
Different placements have different optimal dimensions
Feed, Stories, and Reels each have their own required aspect ratios. One source image does not fit all three without adjustment.
Resizing wrong can lead to cropping and poor mobile experience
Per Meta's Ads Guide, Meta Ads Manager auto-crops images that don't match the recommended aspect ratio for each placement. A creative that looks sharp on desktop preview can appear broken on a phone. Most of your audience is on mobile.
Fast resizing saves time across your ad account
Every campaign touches multiple placements. Getting sizing right from the start cuts revision loops and keeps your account moving faster.
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Instagram's Placement-Specific Ad Dimensions
Each placement has firm specs. Use these as your reference every time you build a creative.
Instagram Feed: 4:5 aspect ratio (portrait)
Per Meta's Ads Guide, Feed image ads work best at 4:5 portrait. Recommended resolution is 1440 x 1800 pixels. Minimum width is 500 pixels. Max file size is 30MB. Accept JPG or PNG.
Instagram Stories: 9:16 aspect ratio (fullscreen vertical)
Stories fill the full screen. Use 9:16 for maximum coverage. Minimum resolution is 1080 x 1920 pixels. Safe zones matter here. keep 14% (250 pixels) of the top and 20% (340 pixels) of the bottom clear from text and logos.
Instagram Reels: 9:16 aspect ratio with safe zones
Reels ads also run at 9:16. Recommended resolution is 1440 x 2560 pixels. Safe zones are stricter than Stories. Leave 14% of the top, 35% of the bottom, and 6% of each side free from text and logos. The Reels UI sits at the bottom. Anything placed there gets covered.
Carousel ads: same aspect ratio rules per placement
Carousel cards follow the same per-placement rules. Feed carousels use 4:5. Stories carousels use 9:16. Each card in the set needs to match.
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Step-by-Step: How to Resize Your Instagram Ad
Follow these five steps for a clean resize every time.
Start with a high-res source image or template
Always start bigger than your smallest output. The recommended Reels resolution is 1440 x 2560 pixels. Start there. You can scale down to Feed dimensions without quality loss. Scaling up a low-res image creates blur.
Use Meta Ads Manager preview to check multiple placements
Upload your image to Meta Ads Manager. Use the built-in preview tool to see how it renders across Feed, Stories, and Reels before you publish. This step catches cropping problems before they reach your audience.
Adjust using the right tool (manual resize vs. AI-assisted)
Manual resizing in Photoshop or Canva works for one placement at a time. It becomes slow when you need three versions from one source. AI-assisted tools like Coinis Revise Smart Resize output all placements in one click.
Verify text and logos stay in safe zones
Check critical elements against safe zone specs before every launch. Stories require 14% top and 20% bottom clear. Reels require 35% bottom clear. A brand logo placed at the bottom of a Reels ad disappears completely behind the platform UI.
Test across device sizes before launching
Preview on both a phone and a desktop. Proportions that pass on a large screen can still clip on a small phone. Meta's preview tool covers multiple device sizes at once.
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Best Practices for Resizing Without Losing Quality
These habits protect image quality and keep your ad compliant across all placements.
Start bigger, scale down
Upscaling a low-res image introduces blur and pixelation. Start at 1440 x 2560 or 1440 x 1800 and crop or scale down to the other formats from there.
Maintain safe margins for text and logos
Keep all critical elements inside the safe zone boundaries for each placement. This protects your creative no matter which device or screen size your audience is using.
Use Meta's preview tool to spot cropping issues early
Meta's preview tool is free and built directly into Ads Manager. Run every creative through it before launch. It takes 30 seconds and saves you from relaunching a broken ad.
Avoid text overlay exceeding 125 characters on Feed, 44 on Reels
Per Meta's Ads Guide, Feed ads allow up to 125 characters of primary text. Reels ads are limited to 44 characters. Text beyond those limits gets cut off in the placement UI. Keep copy tight and front-load your message.
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Tools to Resize Faster: Coinis Revise
Manual resizing is repetitive and easy to get wrong. Coinis Revise Smart Resize handles all three placements without the guesswork.
Smart Resize adapts your image to any placement automatically
Upload one image. Smart Resize outputs the correct dimensions for Feed (4:5), Stories (9:16), and Reels (9:16) without any manual cropping. You pick the target placements. Revise handles the rest.
One-click resizing for Feed, Stories, and Reels
No crop guides to drag. No export-reimport loops. One click produces placement-ready versions of your creative. If a placement needs a different composition, you can fine-tune from the resized output inside the same tool.
Preserves image quality and respects safe zones
Smart Resize uses cutting-edge AI models to maintain image quality through the resize. It keeps your text and logos inside the safe zone boundaries for each placement, so nothing critical ends up behind the Reels UI or Stories overlay.
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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.
15 AI tokens a month. No credit card.
Frequently Asked Questions
What is the best image size for an Instagram Feed ad?
The recommended size for Instagram Feed image ads is 1440 x 1800 pixels at a 4:5 aspect ratio (portrait). Minimum width is 500 pixels and maximum file size is 30MB. Use JPG or PNG format.
Does Instagram automatically crop my ad if the dimensions are wrong?
Yes. Per Meta's Ads Guide, Meta Ads Manager auto-crops images that don't match the recommended aspect ratio for each placement. Always check your creative in Meta's preview tool before launching.
What are the safe zones for Instagram Reels ads?
For Reels ads, leave 14% of the top, 35% of the bottom, and 6% of each side free from text and logos. The Reels platform UI covers the bottom portion of the screen, so anything placed there will be hidden.
Can I use the same image for Feed, Stories, and Reels?
Not directly. Feed requires 4:5 and Stories and Reels both require 9:16. You need separate versions for each placement. Start with a high-res source image and resize down to each format, or use a tool like Coinis Revise Smart Resize to generate all three at once.