Objective: The aim of this study was to investigate the influence of converging angles on the marginal adaptation and the fracture strength of CAD/CAM ceramic copings.Materials and Methods: Three stainless steel metal dies representing a prepared mandibular first molar were used with three different convergence angles (8, 10 and 12 respectively). All of the metal dies received a preparation of 10 mm cervical diameter, 6 mm height and 1.5 mm occlusal reduction. The finish line was rounded shoulder with 1mm thickness. A total of 15 ceramic copings (5 for each convergence angle degree) were constructed on the stainless-steel dies using the milling machine. Vertical marginal gap measurements were recorded using a stereomicroscope; the mean of marginal accuracy in microns was calculated for each group of samples. The copings were subjected to fracture resistance testing using Universal Testing Machine and the mean in Newton was calculated for each group of samples. Data were collected, tabulated and statically analyzed.Results: ANOVA test showed that there was a statistically significant difference between the three groups (P-value < 0.001). Pair-wise comparisons between the three groups showed that there was no statistically significant difference between 8 and 10 degrees (52.6 ± 5.1 µm, 49 ± 0.8 µm respectively); both showed the statistically significantly highest mean marginal gap distances, 12 degrees (32.2 ± 2.2 µm) showed the statistically significantly lowest mean marginal gap distance. Pair-wise comparisons between the three groups showed that 12 degrees convergence (411.4 ± 6.6 N), recorded the statistically significantly highest mean fracture resistance; this was followed by 10 degrees (349 ± 31.2N) and 8 degrees (242.8 ± 5.1N) group recorded the statistically significantly lowest mean fracture resistance.Conclusions: It was found that increasing the axial convergence angle of the ceramic copings diminished their marginal gap distance and increased their fracture resistance values.