In this video, I’m counting down 20 dog breeds with the strongest bite force, measured in PSI (pounds per square inch). Bite force is one factor in a dog’s overall strength, and yes—it can be measured scientifically. To give you some perspective, I compare these numbers to a lion (around 650 PSI) and the average human bite (about 162 PSI), so you can see just how powerful some of these breeds really are. I start at the top with the Kangal at about 743 PSI—stronger than a lion—followed by the Bandog (around 730 PSI) and the Cane Corso (about 700 PSI). From there, I cover other powerful breeds like the Dogue de Bordeaux and Tosa Inu (both listed at 556 PSI), the English Mastiff (552 PSI), and more, all the way down to the Belgian Malinois (190 PSI). Along the way, I also talk about what these dogs are like to live with—temperament, training needs, socialization, and why pack leader training matters so much with strong, protective breeds. My biggest takeaway: bite force numbers are interesting, but any dog can become aggressive if neglected or abused, and any bite can be dangerous. If you’re considering one of these breeds, I strongly recommend working with a professional trainer and starting early with socialization and obedience training.