Optimal image dimensions depend on your theme and layout, but here are general guidelines:
- Featured Images: 1200×628 pixels (standard social sharing size)
- Blog Post Images: 800-1200 pixels wide
- Thumbnails: 150×150 pixels
- Header Images: 2000×1200 pixels
You can manage image sizes in WordPress under Settings > Media. For automated image resizing and optimization, consider using the Regenerate Thumbnails Advanced plugin, which helps create and manage multiple image sizes efficiently.
Remember to maintain aspect ratios and consider your theme’s specific requirements when choosing dimensions.
