According to The Nest, tabby cats can live anywhere from 15 to 20 years. However, genetics, lifestyle, diet and other factors play a large role in how long a tabby cat lives.
One of the most important factors of a cat's health is its lifestyle. The lifestyle choices made for a cat are directly related to how long it lives. The exercise a cat gets, as well as proper eating, are both important lifestyle choices for a cat. It should also be noted that indoor cats live longer than outdoor cats. Outdoor cats typically have a very short lifespan due to hazards such as injury and weather. Indoor cats can live up to seven times longer than an outdoor cat.