WordPress creates this kind of image size by default:
- Medium Large;
The default image sizes are as follows:
- 150px square for thumbnails;
- 300px width for medium images;
- 768px max width for medium_large images;
- 1024px max width for large images.
If you want to change default image sizes in the WordPress Dasboard find Media->Settings. An image below.
Important!!! If you change default WordPress image size, you need to reupload your images.