Aims and objectives:Orthodontic diagnosis and treatment planning immenselydepends on the assessment of anteroposterior relationship.The aim of the study was to establish the mean value for beta angle in southwestern Maharashtra population and to compare the reliability of the beta angle withWITS appraisal. Material and Methods:Total sample of 100 patients were included in the study. Samples were assigned into 3 groups based on Classes I, II, and III skeletal pattern. Lateral cephalograms of the samples were traced. The Beta angle was measured for each patient in all 3 groups and the mean values were calculated. A comparative study of the beta angle with WITS appraisal was carried out for the same set of patients. Obtained data was subjected to statistical analysis. Result:A new norm for beta angle ranging from 30–33° for class I skeletal pattern was established. The beta angle proved to be 30% more reliable when compared to wits appraisal. Conclusion: The reliability of beta angle was comparatively high than wits appraisal though, it is a little time consuming. Consistency and accuracy of beta angle makes it reliable to evaluate the sagittal jaw discrepancy.