Instagram Reel Aspect Ratio Calculator
Instagram Reels use the 9:16 vertical ratio at 1080×1920. The same dimensions work for Reel covers.
The recommended Instagram reel size is 1080 × 1920 pixels, a 9:16 aspect ratio.
Verified
| Format | Pixels | Ratio |
|---|---|---|
| Square post | 1080 × 1080 | 1:1 |
| Portrait post | 1080 × 1350 | 4:5 |
| Landscape post | 1080 × 566 | 1.91:1 |
| Story | 1080 × 1920 | 9:16 |
| Reel | 1080 × 1920 | 9:16 |
Drop an image, get every social size at once
Centered smart crop, exported as PNG. No upload to a server.
Instagram Reel specs
Reels use 9:16 vertical at 1080×1920 pixels. The same dimensions apply to the Reel cover image, the still frame that represents the Reel in your grid and on the explore page.
Reel videos can be up to 90 seconds long. The cover is critical because it's what shows up when someone scrolls past your grid; a strong cover moves people from glance to tap.
Reel cover safe zone
If your Reel cover is meant to read on the explore page AND inside your profile grid, design for both crops. The grid crops to a 3:4 tile showing only the central 1080×1440 of your 1080×1920 cover. The explore page shows the full 9:16. Anything important should fit inside the 1080×1440 center band.
Want to see the crop and the Reels buttons on your own cover? Try the free Instagram Reels safe zone checker.
Reel vs Story cover ratio
Both use 9:16 at 1080×1920, but Reels add the grid crop consideration. If you're designing covers in bulk, build one 1080×1920 template with a 1080×1440 safe zone marked. Every cover stays grid-friendly.
Announcing the Reel in your Stories too? The AI Instagram story maker designs the 1080×1920 story from your description.
How the calculator works
Math, resizing, and image cropping in one place. Free, no signup, no watermark.
Enter your dimensions
Type any width and height in pixels. We simplify the ratio with the greatest common divisor and tell you the closest standard match.
Resize without losing proportions
Switch to Resize. Keep the original ratio while scaling to a new width or height. Round to whole pixels with one click.
Or drop in an image
Image mode shows a smart-cropped preview for every social platform: Instagram, TikTok, YouTube, LinkedIn, Pinterest, and more.
Download the right size
Grab a single PNG at the exact dimensions you need, or download every social platform size at once as a ZIP.
Built for the work you actually do
Every social platform. Every common ratio. Image-aware so you see what gets cropped before you post.
Sizing for Instagram
Square, portrait, story, Reel. Instagram has four valid sizes and the wrong one gets your post cropped. Pick the platform, get the pixels.
YouTube videos and thumbnails
Videos at 1920×1080 or 3840×2160. Thumbnails at 1280×720. Shorts at 1080×1920. Get the right size without searching the YouTube docs.
TikTok and Reels covers
9:16 vertical at 1080×1920. Drop your cover art, download a perfectly cropped version that won't get squashed.
DSLR and stock photos
Original 3:2 photo, target 4:5 Instagram portrait? Resize without distortion. Center crop preview shows what gets cut.
Designing for screens
Build mockups that fit 16:9 monitors, 9:16 phones, or 21:9 ultrawides. Get pixel dimensions before you open Figma.
Bulk export for a campaign
One image, every social platform size. Drop it in image mode, hit download all. ZIP file with PNGs ready to post.
Social media aspect ratios in 2026
Every common social platform format with the recommended pixel size and ratio.
| Platform | Format | Pixels | Ratio |
|---|---|---|---|
| Square post | 1080 × 1080 | 1:1 | |
| Portrait post | 1080 × 1350 | 4:5 | |
| Landscape post | 1080 × 566 | 191:100 | |
| Story | 1080 × 1920 | 9:16 | |
| Reel | 1080 × 1920 | 9:16 | |
| TikTok | Video | 1080 × 1920 | 9:16 |
| YouTube | Video | 1920 × 1080 | 16:9 |
| YouTube | Shorts | 1080 × 1920 | 9:16 |
| YouTube | Thumbnail | 1280 × 720 | 16:9 |
| Feed post | 1200 × 630 | 191:100 | |
| Story | 1080 × 1920 | 9:16 | |
| Cover | 851 × 315 | 851:315 | |
| Square post | 1200 × 1200 | 1:1 | |
| Cover | 1584 × 396 | 4:1 | |
| X (Twitter) | Image post | 1600 × 900 | 16:9 |
| X (Twitter) | Header | 1500 × 500 | 3:1 |
| Standard pin | 1000 × 1500 | 2:3 | |
| Tall pin | 1000 × 2100 | 10:21 | |
| Snapchat | Snap / Story | 1080 × 1920 | 9:16 |
Verified
Other platforms
Pre-filled calculators for every social platform.
Frequently asked questions
What's the difference between a Reel cover and a regular cover?
Reel cover is 9:16 (1080×1920), but Instagram crops the central 3:4 (1080×1440) when displaying it in your grid. Design for both crops or you'll lose the message in grid view.
Can I use the same video for Reels and TikTok?
Yes. Both platforms use 9:16 at 1080×1920. Same export, two destinations. The audio policies differ. TikTok's audio library is its own; if you use platform-licensed Instagram audio, it won't carry over.
What is an aspect ratio?
Aspect ratio is the relationship between width and height, written as width:height. A 1920×1080 image has a 16:9 aspect ratio because 1920÷120 = 16 and 1080÷120 = 9. The ratio describes the shape of the rectangle, independent of size. A 1280×720 image is also 16:9.
How do I calculate the aspect ratio of an image?
Divide width by height to get the decimal ratio. To get the simplified form, find the greatest common divisor (GCD) of width and height and divide both by it. 1920÷1080 = 1.778, GCD(1920, 1080) = 120, so the ratio is 16:9. The calculator above does this instantly.
Is 1920×1080 a 16:9 aspect ratio?
Yes. 1920÷1080 = 1.778, which equals 16÷9. Full HD video, most monitors, and standard YouTube videos are all 16:9 at 1920×1080.
What aspect ratio is best for Instagram?
Instagram supports four ratios. Square 1:1 at 1080×1080 for feed posts. Portrait 4:5 at 1080×1350 for taller feed posts (recommended for organic reach). Landscape 1.91:1 at 1080×566 for wide posts. Vertical 9:16 at 1080×1920 for Stories and Reels.
What ratio should I use for TikTok?
TikTok uses 9:16 vertical at 1080×1920 pixels. The same applies to Instagram Reels and YouTube Shorts. One vertical export covers all three.
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