Many cat owners consider their feline friends as part of the family, often wondering how old their cats would be in human years. Dr. Marty Becker, founder of Fear Free Pets, explains the process is relatively simple after the first two years of a cat's life.

In the first two years, cats develop rapidly, reaching the human equivalent of their mid-20s by age 2. A 1-year-old cat is equivalent to a 15-year-old human, and a 2-year-old cat is like a 25-year-old human. After this, each year of a cat's life is roughly equal to four human years. For example, a 3-year-old cat is about 29 in human years, a 4-year-old cat is 33, and so on. A 20-year-old cat would be around 97 in human years.

Unlike dogs, whose age equivalents vary based on size, the formula for cats is universal due to their similar size.

When Is a Cat No Longer Considered a Kitten?

A cat's first year is akin to the terrible twos and teenage years combined, according to Dr. Becker. A cat is considered a young adult when they turn 1, having completed their physical development and awaiting mental maturity, which occurs by the end of their second year.

When Is a Cat Considered a Teenager?

A cat is considered a teenager shortly before turning 1 and continues for a few months after their first birthday.

How Old Is an Adult Cat?

Cats are considered young adults when they turn 1, having completed their physical development. Their mental maturity catches up shortly after their second year.

When Is a Cat Considered a Senior?

Cats become seniors around their 11th birthdays, with their human age creeping into the 60s. This is when they might start considering retirement from their active lives.

How Many Years Do Cats Live on Average?

Cats can live up to 20 years or even longer with proper care. Factors that influence longevity include heredity, environment, and nutrition. Providing a safe environment and ensuring proper nutrition can help extend your cat's lifespan.