Ans: Have a decision of 1280×720 (with minimal width of 640 pixels). By Google’s personal recommendations, your picture needs to be 1280 x 720 pixels, with a minimum width of 640 pixels. One of the best YouTube thumbnail size is 1280 x 720 pixels. You can’t change the thumbnail size on YouTube. Even in the event you choose a prepared-made template, you possibly can change…