Your YouTube channel banner, also known as channel art or header, is similar to a cover photo that represents your brand and content. The ideal YouTube banner size is 2560 x 1440 pixels, but you can use minimum banner dimensions of 2048 x 1152 pixels. For best results, create a channel banner image with a 16:9 aspect ratio.

The recommended YouTube banner size is 2,560 x 1,440 pixels.

The ideal YouTube banner size is 2560 x 1440 pixels, while the minimum image dimension is 2048 x 1152 pixels. From here, you must also know how to design your YouTube banner for different devices, each with different “viewing areas.” Visitors who view your channel from their televisions will see the entire banner.