YouTube Thumbnail Sizes and Best Practices (New for 2019)
JUNE 17, 2019
The ideal thumbnail size is 1280 × 720 pixels with a minimum width of 640 pixels, and the ideal ratio for YouTube players and previews is 16:9. Along with the correct size, you’ll also want to keep in mind the ratio, file size, and file type of your thumbnail. 1280 x 720 pixels – Minimum width: 640 pixels – Recommended ratio: 16:9 – Maximum file size: 2MB – Accepted file types: JPG,GIF,BMP, or.PNG.