YouTube banner size at a glance
Recommended upload 2560 x 1440 pixels, minimum 2048 x 1152 pixels, 16:9 aspect ratio, maximum file size 6 MB. The safe area for text and logos is 1235 x 338 pixels at the minimum size, which scales to 1546 x 423 at 2560 x 1440. These follow YouTube's own channel banner guidelines.