Check the options under the Appearance tab in the left side panel, and look for options to toggle the featured image size within your specific theme. If no option exists in your theme settings, you can change the default featured image size in your WordPress settings.
What is the best image size for websites?
Optimal file size: Large images or full-screen background images should be no more than 1 MB. Most other small web graphics can be 300 KB or less. If you’re using a full-screen background, Jimdo’s Customer Support Team recommends uploading an image that’s 2000 pixels wide.
What is a featured image?
Featured images (also sometimes called Post Thumbnails) are images that represent an individual Post, Page, or Custom Post Type. When you create your Theme, you can output the featured image in a number of different ways, on your archive page, in your header, or above a post, for example.
What is the maximum upload size for WordPress?
To prevent users from causing server timeouts, the default maximum upload size in WordPress typically ranges from 4 MB to 128 MB. Usually, the hosting provider sets this limit at the server level. WordPress also includes constants that define this limit, but they cannot override the server-level settings in most cases.