Recommended resolution size for Profile or Group photos

PROFILE & GROUP PHOTOS

Below are sample photos of the recommended maximum, default, and smallest resolution sizes.

The resolution size is based on pixels. For Profile and Group photos, the width is fixed at 200 pixels. The height varies from the minimum 1 pixel to the maximum of 300 pixel.

• Maximum: width 200 x height 300
• Default: width 200 x height 200
• Smallest: width 200 x height 1

THUMBNAILS

Additionally, for your reference, below are the sizes of their thumbnail version that you may find around Salesforce.
 

45 x 45

Size: width 45 x height 45

Thumbnails found in:

- Chatter posts

30 x 30

Size: width 30 x height 30

16 x 16

Size: width 16 x height 16

- Thumbnail of user's manager indicated in the user's Profile page.