A standard aspect ratio for all displays currently being used is 1920*1080. Therefore the optimal size for a background in Microsoft Teams needs to be 1920*1080. Using these background sizes will ensure that there are no cutoffs or no protruding negative space, which could obscure vision.

You can use JPG and PNG for your Microsoft Teams backgrounds. However, the best format to use is PNG and the best resolution is 1920×1080. Some JPG image files store data like the camera rotation in the file’s metadata, rather than rotating the picture.

Based on my research, for the best experience with custom backgrounds, Teams recommend uploading images with an aspect ratio of 16:9 and a resolution of at least 1920 x 1080 if possible.

Well, we definitely got a sneak peek into the requirements for custom background images in Teams, but let’s go through it again. The minimum dimensions of an image are 360 by 360 pixels. The maximum size is 2048 by 2048 pixels. You can use JPEG, JPG, PNG, and BMP image formats.

Like any other background, Microsoft Teams background size should serve its purpose well and follow certain requirements, including file format and minimum size limits. The default pixel size of Teams backgrounds are 1920 x 1080 px, or any 16:9 ratio image of that size or larger.