We see images of the Buddha represented in various places, and when we think of him, we may call to mind an image.
Perhaps of a kindly, rotund man, such as this one inch tall statue which I probably received in my stocking at Christmas. I love it.
This kind of image evolved from this earlier imagery which I found in Wikipedia when I google
This image was from about the year 200 CE (=AD).
Very interesting, is that Buddha is considered to have been born in the 5th century BCE, which stands for before common era (=BC). Images were not initially made of him because that was apparently considered to be improper, until about 100 or 200 CE (=AD).
You can read a list of 32 major physical characteristics of Buddha, and 80 minor physical characteristics of Buddha if you google “the physical characteristics of Buddha”. Then you will get a Wikipedia article on the subject. They are all complimentary.
The truth is that we have no way of knowing what Buddha looked like.