how big is a cats brain

A cat's brain is approximately 2 inches (5 centimeters) long and weighs between 25 to 30 grams (0.88 to 1.06 ounces). This size is roughly comparable to a human pinky finger or a walnut. The cat's brain accounts for about 0.91% to 1% of its total body weight, which is smaller proportionally than the human brain that makes up about 2.3% of body weight. Despite the relatively small size, a cat's brain is complex and structured similarly to a human brain, with around 300 million neurons in the cerebral cortex enabling remarkable cognitive abilities. The domestication of cats has led to somewhat smaller brain sizes compared to their wild ancestors, but this has not significantly reduced their intelligence or problem-solving capabilities.