Fracture toughness and impact resistance are critical properties for the integrity of materials, especially in applications where safety and durability are essential. Fracture toughness measures a material s ability to resist crack propagation, while impact resistance evaluates the ability to absorb energy during a sudden impact. Understanding the relationship between these properties can help in selecting the most suitable materials for different applications. Ductile materials are those that exhibit significant plastic deformation before fracturing, making them ideal for applications that require energy absorption and resistance to sudden failure. Understanding the relationship between fracture toughness and impact resistance in these materials is essential for developing safer and more efficient solutions across various industries. This relationship is particularly relevant in sectors such as automotive, aerospace, naval, civil construction, and consumer goods, where structural integrity and safety are critical. Studying these properties enables the design of materials that not only withstand high loads but also perform reliably under critical conditions, contributing to advancements in engineering and materials science. Finally, considering the advantages of Charpy impact tests, particularly in terms of cost, speed, and simplicity, this study aims to evaluate existing equations and relationships found in the literature and, potentially, to develop practical correlations that enable the estimation of fracture toughness in ductile materials based on these tests, making their use feasible in applications where direct testing is not practical.