WordPress Image Sizes 2026
All the image sizes you need for WordPress, updated for 2026.
Last updated: April 2026
Size Reference
| Usage | Dimensions | Aspect Ratio | Category |
|---|---|---|---|
| Featured Image | 1200 x 630 | 1.91:1 | Post |
| Thumbnail | 150 x 150 | 1:1 | Thumbnail |
| Medium | 300 x 300 | 1:1 | Thumbnail |
| Large | 1024 x 1024 | 1:1 | Post |
| Header Image | 1920 x 1080 | 16:9 | Cover |
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Detailed Guide for Each Size
Featured Image
- Recommended size:
- 1200 x 630 px
- Aspect Ratio:
- 1.91:1
- Max file size:
- 10MB
- Supported formats:
- JPEG, PNG, WebP
Tips: Use high-resolution images for WordPress feed posts to maintain clarity after compression. Upload at or above the recommended size for best results.
Thumbnail
- Recommended size:
- 150 x 150 px
- Aspect Ratio:
- 1:1
- Max file size:
- 10MB
- Supported formats:
- JPEG, PNG, WebP
Tips: Thumbnails are key for grabbing attention. Use large fonts for any text overlays and avoid placing important elements near the edges.
Medium
- Recommended size:
- 300 x 300 px
- Aspect Ratio:
- 1:1
- Max file size:
- 10MB
- Supported formats:
- JPEG, PNG, WebP
Tips: Thumbnails are key for grabbing attention. Use large fonts for any text overlays and avoid placing important elements near the edges.
Large
- Recommended size:
- 1024 x 1024 px
- Aspect Ratio:
- 1:1
- Max file size:
- 10MB
- Supported formats:
- JPEG, PNG, WebP
Tips: Use high-resolution images for WordPress feed posts to maintain clarity after compression. Upload at or above the recommended size for best results.
Header Image
- Recommended size:
- 1920 x 1080 px
- Aspect Ratio:
- 16:9
- Max file size:
- 10MB
- Supported formats:
- JPEG, PNG, WebP
Tips: Cover images display differently across devices. Keep important elements toward the center to ensure they are visible on all screen sizes.
Frequently Asked Questions
What are the recommended image sizes for WordPress?
WordPress image sizes vary by usage. See the size reference table above for recommended dimensions for posts, stories, profiles, and more.
Why do my WordPress images lose quality after uploading?
WordPress automatically compresses images on upload. Use high-resolution images at or above the recommended size and set JPEG quality to high to minimize quality loss.
Can I resize images for WordPress for free?
Yes, ShareMint lets you resize to all WordPress sizes for free. Everything runs in your browser — your images are never sent to a server.
What image format should I use for WordPress?
JPEG is the most common and widely compatible format. Use PNG if you need transparency. WebP offers smaller file sizes with good quality but may not be supported everywhere.