In this article an automatic Hass avocado grading system is introduced. The equipment consists of a conveyor belt and an artificial vision system. The color classification was made by determining a color scale according to agricultural standards. From the depth image, the Z coordinate of the points was obtained and a function that represents the shape of the avocado was constructed. It was used to calculate the volume of the avocado. Fifty avocados were classified (one avocado per second). The volume found was validated by the immersion of the avocados in water and correlating the displacement with the estimated dimension.