Quick answer: Instagram Feed ads run best at 4:5 (1080x1350px). Stories and Reels both need 9:16 (1080x1920px). Use Coinis Revise Smart Resize to adapt one image across all three placements without manual cropping or quality loss.
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Why Instagram Ad Image Size Matters
Wrong dimensions mean cropped logos, cut-off text, and rejected uploads. Each Instagram placement has its own spec. Get it right and your ad fills the screen. Get it wrong and Meta either rejects the upload or auto-crops the worst part of your image.
Instagram Ad Image Sizes by Placement
Per Meta's Ads Guide, every placement has a recommended aspect ratio and resolution. These are not suggestions.
Instagram Feed Ads (4:5 aspect ratio)
Recommended size: 1440x1800px, or 1080x1350px for everyday use. File must be JPG or PNG, maximum 30MB, minimum 500px wide. The 4:5 ratio takes up more mobile screen real estate than square or landscape formats. More screen space means more attention.
Instagram Stories Ads (9:16 aspect ratio)
Stories run fullscreen vertical. Per Meta's Business Help Center, 9:16 is the recommended ratio for optimal Stories display. The standard size is 1080x1920px. Other Feed dimensions technically upload, but only 9:16 fills the screen properly.
Instagram Reels Ads (9:16 aspect ratio)
Reels also require 9:16. Per Meta's Ads Guide, the recommended resolution is 1440x2560px. Critical text and logos need to stay away from the edges. Meta's safe zone: leave 14% at the top, 35% at the bottom, and 6% on each side clear of text and logos.
How to Resize Your Image for Instagram Ads
Four steps. No guesswork.
Step 1: Know your target placement
Decide where the ad runs before you resize. Feed, Stories, and Reels each need different dimensions. One image rarely fits all three without adjustment.
Step 2: Check your original image dimensions
Confirm the pixel dimensions of your source file before touching anything. Images below 1080px wide may lose quality when stretched to fit placement specs. Start with at least 1080px wide for clean output.
Step 3: Use Smart Resize to adapt across formats
Upload your image to Coinis Revise and select Smart Resize. Choose your target placement. Coinis adapts the image to the correct aspect ratio without distorting your subject. Repeat for each placement. No manual cropping. No Photoshop required.
Step 4: Preview before publishing
Always preview the resized image before pushing it live. Check that logos, product shots, and text are fully visible and centered. The Coinis preview shows exactly how the ad renders on the target placement.
Best Practices for Instagram Ad Image Resizing
Sharp habits save hours of rework.
Keep text and logos in the safe zone
For Reels, Meta's spec is 14% top, 35% bottom, and 6% each side as a clear zone. Feed and Stories have their own UI overlays covering edges. Keep important elements in the center portion of the frame across every placement.
Start with high-resolution source images
Scaling up a low-res image blurs the output. Use the highest resolution source you have. If your original is soft, Coinis Revise AI Upscale can recover detail before you resize.
Test multiple placements with one image
One strong image can run across Feed, Stories, and Reels with Smart Resize. Testing all three placements from a single creative takes minutes, not hours. More placements, same effort.
Use consistent aspect ratios for carousel ads
Carousel ads require a minimum of 600x600px per card. Per Meta's developer documentation, mixing portrait and landscape cards in one carousel creates inconsistent scroll behavior. Pick one ratio and apply it to every card.
How Coinis Revise Simplifies Resizing
Coinis Revise is an AI image editor built for ad creatives. Smart Resize adapts any image to any Instagram placement spec. No uploading to external tools. No manual cropping. No version confusion.
You can also fix other ad issues in the same session. Reposition text with Edit text on image. Remove distracting background elements with AI Erase. Sharpen a blurry source file with AI Upscale. Translate copy for a new market with AI Translate. All inside one tool, all without Photoshop.
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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 ad?
It depends on the placement. Feed ads perform best at 4:5 ratio (1080x1350px). Stories and Reels both use 9:16 ratio (1080x1920px). Always use JPG or PNG, keep the file under 30MB, and stay above 500px wide at minimum.
Can I use the same image for Feed, Stories, and Reels?
Yes, but you need to resize it for each placement. Feed needs 4:5 and Stories or Reels need 9:16. A tool like Coinis Revise Smart Resize adapts one image to all three formats without manual cropping or quality loss.