Resize Image for Instagram
Get the exact pixel dimensions for every Instagram format — posts, stories, reels, carousels, and profile photos — and resize in one click.
Instagram Image Sizes 2026 — Complete Reference
| Format | Dimensions | Ratio | File Size | Notes |
|---|---|---|---|---|
| Square Post | 1080 × 1080 px | 1:1 | 150–300 KB | Default format. Safe for all feed layouts. Crops to 4:5 on some feeds. |
| Portrait Post | 1080 × 1350 px | 4:5 | 200–400 KB | Takes most feed space. Best for engagement. Most recommended format. |
| Landscape Post | 1080 × 566 px | 1.91:1 | 100–200 KB | Avoid — Instagram crops aggressively and it shows less of your image. |
| Story | 1080 × 1920 px | 9:16 | 300–600 KB | Full-screen vertical. Keep key content within 250px of top and bottom. |
| Reel Cover | 1080 × 1920 px | 9:16 | 300–600 KB | Same as Story. Feed thumbnail crops to 1:1 so center your subject. |
| Profile Photo | 320 × 320 px | 1:1 | < 50 KB | Displayed circular at 110px. Keep subject centered and avoid fine details. |
| Carousel Slide | 1080 × 1080 px | 1:1 | 150–300 KB | Use same ratio for all slides. Mixing ratios causes erratic cropping. |
| IGTV Cover | 420 × 654 px | 1:1.55 | < 100 KB | Vertical thumbnail. Bold text and faces work best at this size. |
How to Resize an Image for Instagram
Choose your Instagram format
Refer to the size guide above and pick the right dimensions for your post type — square (1080×1080), portrait (1080×1350), story (1080×1920), etc.
Upload your image
Click 'Resize Image Now' and upload your photo. JPG, PNG, and WebP are all supported up to 10MB.
Enter the exact pixel dimensions
Type the width and height from the table above. Enable 'Lock aspect ratio' if you want to avoid distortion — or turn it off to force an exact crop.
Download and post
Click Process then Download. Your image is ready to upload directly to Instagram with no further resizing needed.
Pro Tip: Use Portrait (4:5) for Maximum Reach
The 4:5 portrait format (1080×1350px) takes up significantly more vertical space in the Instagram feed than a square post — giving your image roughly 25% more screen real estate. More space = more attention = higher engagement rates. Switch from square to 4:5 portrait for your next post and you will notice the difference immediately.
Free Tools for Instagram-Ready Images
Frequently Asked Questions
What is the best image size for Instagram posts in 2026?
The best Instagram post size is 1080 × 1350 pixels (4:5 portrait ratio). It takes the most feed space, gets more engagement, and displays at full resolution on all devices. For square content, use 1080 × 1080 pixels.
What size should an Instagram story image be?
Instagram Story images should be 1080 × 1920 pixels (9:16 ratio). Keep important content — text, faces, and CTAs — within the safe zone: 250px from the top and 250px from the bottom to avoid being obscured by the UI.
Why does Instagram crop my photos?
Instagram enforces aspect ratio limits. It accepts ratios between 1.91:1 (landscape) and 4:5 (portrait). If you upload an image outside these bounds — like a tall 9:16 portrait for a feed post — Instagram crops it to the nearest accepted ratio. Always resize to the exact dimensions before uploading.
What is the Instagram profile photo size?
Your Instagram profile photo should be at least 320 × 320 pixels in a 1:1 square ratio. Instagram displays it as a circle at approximately 110px diameter on mobile and 150px on desktop. Use a clear, centered subject with no fine details that would be lost at small sizes.
Does Instagram reduce image quality?
Yes. Instagram re-compresses images during upload, applying JPEG compression at approximately quality 85. To minimize quality loss, upload at exactly 1080px wide (the maximum Instagram displays), in sRGB color profile, and at quality 80–85 — this matches Instagram's compression and avoids a second round of degradation.
What image format should I use for Instagram?
Use JPEG for photos — it achieves the smallest file sizes at good quality. Use PNG only for graphics, logos, and text-heavy images where sharpness matters. Instagram accepts JPEG and PNG but re-compresses both to JPEG internally.