Heat transfer characterized by jet impingement was researched as a result of the rising requirement for metal cutting, heat exchangers, and electronic component cooling. As a result, the Graphene/water Nano fluid is used to improve the heat exchanged by impinging Nano fluid through a round jet. Three Nano fluids were fully created with varied graphene concentrations (0.1, 0.2, and 0.3%) with deionized water as base fluid. Validation was carried out by comparing the results to those from similar research that showed a content variance. The parameter (Z/d) (distance between the nozzle exit and the heating plate with respect to the diameter of the jet) has been modified to 4, 6, and 8 for the diameter of the hydraulic jet of 6 mm. The findings revealed that using Nano fluid in such a setup provides additional benefits. The obtained findings revealed that using Nano fluid in such an arrangement increases convective heat transfer coefficient (h = 70%) at the stagnation point and nanoparticle concentration (= 0.3% and Z/d = 4). At a nanoparticle concentration of (= 0.1% at the stagnation point) and a Z/d spacing of 8, the minimal acquired heat transfer (h = 20.8%) was measured.