How to use this tool
See common sizes for featured images, galleries and thumbnails, and calculate the resulting dimensions at a chosen width.
Example
Featured image 1200 × 675 (16:9).
Tips
Upload at about twice the display size, then let WordPress generate WebP versions.
Frequently asked questions
Is this tool free?
Yes. It runs in your browser and nothing you type is stored.
Do I need to check the results?
Yes. Generated text is a starting point. Always review it for accuracy and originality before publishing.