Why Image Sizes Matter
Every social media platform displays images differently. An image that looks perfect on Instagram may get cropped awkwardly on Twitter or compressed into a blurry thumbnail on LinkedIn. Using the correct dimensions ensures your content displays as intended, maintains visual quality, and occupies the maximum available screen space.
Incorrect sizing is not just an aesthetic issue — it directly impacts performance. Posts with properly sized images receive higher engagement because they look professional and display fully in feeds without requiring users to click to see the complete image.
Instagram Image Sizes
| Format | Dimensions | Aspect Ratio |
|---|---|---|
| Feed Post (Square) | 1080 x 1080 px | 1:1 |
| Feed Post (Portrait) | 1080 x 1350 px | 4:5 |
| Feed Post (Landscape) | 1080 x 566 px | 1.91:1 |
| Stories / Reels | 1080 x 1920 px | 9:16 |
| Profile Photo | 320 x 320 px | 1:1 |
| Carousel Slides | 1080 x 1350 px (recommended) | 4:5 |
Portrait (4:5) is the recommended format for Instagram feed posts — it occupies the most vertical screen space on mobile. Use the Instagram Grid Maker to split images for grid layouts at these exact dimensions.
TikTok Image Sizes
| Format | Dimensions | Aspect Ratio |
|---|---|---|
| Photo Carousel | 1080 x 1920 px | 9:16 |
| Profile Photo | 200 x 200 px | 1:1 |
| Video Thumbnail | 1080 x 1920 px | 9:16 |
TikTok photo carousels use full-screen vertical images. The Carousel Maker can resize your images to TikTok's 9:16 dimensions for photo carousel posts.
Facebook Image Sizes
| Format | Dimensions | Aspect Ratio |
|---|---|---|
| Feed Post | 1200 x 630 px | 1.91:1 |
| Cover Photo | 820 x 312 px | 2.63:1 |
| Profile Photo | 170 x 170 px | 1:1 |
| Event Cover | 1200 x 628 px | 1.91:1 |
| Carousel Ad | 1080 x 1080 px | 1:1 |
X (Twitter) Image Sizes
| Format | Dimensions | Aspect Ratio |
|---|---|---|
| In-Feed Image | 1200 x 675 px | 16:9 |
| Header Photo | 1500 x 500 px | 3:1 |
| Profile Photo | 400 x 400 px | 1:1 |
| Card Image | 1200 x 628 px | 1.91:1 |
LinkedIn Image Sizes
| Format | Dimensions | Aspect Ratio |
|---|---|---|
| Feed Post | 1200 x 627 px | 1.91:1 |
| Banner | 1584 x 396 px | 4:1 |
| Profile Photo | 400 x 400 px | 1:1 |
| Company Cover | 1128 x 191 px | 5.9:1 |
YouTube Image Sizes
| Format | Dimensions | Aspect Ratio |
|---|---|---|
| Thumbnail | 1280 x 720 px | 16:9 |
| Channel Art | 2560 x 1440 px | 16:9 |
| Profile Photo | 800 x 800 px | 1:1 |
Pinterest Image Sizes
| Format | Dimensions | Aspect Ratio |
|---|---|---|
| Standard Pin | 1000 x 1500 px | 2:3 |
| Long Pin | 1000 x 2100 px | 1:2.1 |
| Board Cover | 600 x 600 px | 1:1 |
| Profile Photo | 165 x 165 px | 1:1 |
Quick Reference: Maximum Feed Visibility
For each platform, the format that occupies the most screen space in the mobile feed:
- Instagram: Portrait 1080 x 1350 (4:5)
- TikTok: Full screen 1080 x 1920 (9:16)
- Facebook: Square 1080 x 1080 (1:1)
- X/Twitter: Landscape 1200 x 675 (16:9)
- LinkedIn: Square or vertical 1080 x 1350 (4:5)
- Pinterest: Long pin 1000 x 2100 (1:2.1)
Resize your images for any platform — use the Batch Splitter to process multiple images at once, ensuring consistent dimensions across your entire content library.
Bello Moussa Amadou
Founder of ReachUp and the maker of Image Splitter Online. Bello builds free, privacy-first web tools used by creators worldwide, and writes these guides from running them day to day.
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