Best Image Sizes for Blog Posts and SEO
Choose blog image dimensions that balance sharp visuals, fast loading, responsive layouts, and image SEO.
Open the related CropYourImage tool
| Format | Width | Height | Notes |
|---|---|---|---|
| Hero image | 1600 | 900 | Wide source for responsive article headers. |
| Inline image | 1200 | 675 | Good balance of clarity and file size. |
| Open Graph image | 1200 | 630 | Common social sharing preview size. |
Quick answer
Blog images need to look sharp without slowing the page down. A huge camera original is usually unnecessary for an article layout, while a tiny image will look blurry on high-density screens. The best size depends on where the image appears.
For most blog content, 1200 x 675 works well for inline 16:9 visuals. For social sharing previews, 1200 x 630 is a reliable Open Graph size. Hero images can be larger if they span the full width, but compression is still important.
SEO also depends on filenames, alt text, and context. Use descriptive filenames, write alt text that explains the image, and place images near related copy. Search engines understand images better when the surrounding page is clear.
Recommended workflow
- Start with the largest clean source image you have.
- Choose the exact destination size before adding final text.
- Crop visually so the subject, logo, and key message stay inside the safe area.
- Export in JPG for photos, PNG for crisp graphics, or WebP for web use.
Checklist
- Use 1200 x 630 for share images.
- Compress large photos.
- Write descriptive alt text.
- Use meaningful filenames with keywords only where natural.