The typical lifespan of a common house cat is around 12 to 15 years, although many cats can live into their late teens or even early twenties with proper care. Factors influencing a cat's lifespan include genetics, diet, environment, and veterinary care. Indoor cats generally live longer than outdoor cats due to reduced risks from accidents, predators, and diseases. Regular check-ups, vaccinations, and a balanced diet contribute to a cat's overall health and longevity. Furthermore, providing a safe, enriched environment can enhance a cat’s quality of life and well-being.