Objective: The aims of the study were determination of the range of CTHFN in different categories of FLD by USG and to compare CT Hounsfield Numbers with ultrasonographic categorization of the FLD. Material and Methods: It was a cross sectional analytical study. By purposive sampling 186 patients of FLD were sampled from Department of Radiology, Maharishi Markandeswar Medical College and Hospital Kumarhatti, Solan, Himachal Pradesh, The data was collected for 9 months. Patients of both gender of age between 20-80 years, who underwent both CT and USG scans of abdomen and with Ultrasonographic diagnosis of diffuse FLD were included. The USG categories of FLD were compared with mean liver CTHFN. Statistical analysis was done by ANOVA; p value of CTHFN was found significant for each Ultrasonographic category of FLD.