How long cats live and what you can do to help yours live longer
Cats live considerably longer than most dogs, and their lifespan keeps growing. A well cared for cat can be with you for fifteen or twenty years. Part of it comes down to luck and genetics, but a good part depends on decisions you make.
The figure: 12 to 15 years, and rising
The life expectancy of a well cared for pet cat is, on average, between 12 and 15 years, and it is common for them to pass 18. A 2024 British study using the veterinary records of thousands of cats put average life expectancy at around 12 years, slightly higher in females than in males and in crossbreds than in pedigree cats as a whole, although with big differences between breeds. That average includes cats that die young from accidents or illness, so a cat that reaches adulthood in good health has a good chance of living considerably longer. The recognised record belongs to an American cat, Creme Puff, who lived to 38.
A cat’s age in human years
The old rule of multiplying by seven does not work. A cat matures very quickly: at one year it is roughly equivalent to a 15-year-old person, and at two, to a 24-year-old. From then on, each cat year adds about four human years. So a 10-year-old cat is equivalent to a person of about 56, a 15-year-old to about 76, and a 20-year-old to about 96. Feline veterinary guidelines distinguish several life stages: kitten up to one year, young adult up to six, mature adult from seven to ten and senior from ten onwards. You can work out your cat’s age with our tool.
Indoors or outdoors: the biggest difference
It is one of the factors that counts most. Cats that live only indoors or with access to a protected outdoor space tend to live longer than those that roam freely, especially in urban areas. Outside, the risks are road traffic accidents, fights with other cats, which spread feline leukaemia virus and feline immunodeficiency virus, poisoning, dog attacks, falls and getting lost. In quiet rural areas the risk is lower, and a cat with outdoor access gets more stimulation. But if you want the greatest longevity, a well-enriched indoor cat with a protected balcony or a catio is the safest option. We compare the two in the article on indoor cats versus outdoor access.
Neutering extends life
Neutered cats tend to live longer than unneutered ones. In females, early neutering greatly reduces the risk of mammary tumours, which in cats are malignant in most cases, and eliminates womb infections. In males, it reduces the urge to escape, travel long distances and fight, which is the main route of transmission of feline immunodeficiency virus and a common cause of wounds and road accidents. The downside is a tendency to put on weight, which is controlled through diet. That is why neutering is the general rule for cats in Spain.
Weight, the factor you control most
Excess weight is probably the most common health problem in pet cats, and it takes years off their lives. An obese cat is at much greater risk of diabetes, arthritis, urinary problems, liver disease and skin problems, because it cannot groom properly. Keeping your cat at a healthy weight is one of the most effective things you can do for its longevity, and it depends almost entirely on you: a portion weighed on scales, counted treats, wet food as part of the diet and daily play. If you cannot feel its ribs as you run your hand along its side, it is already somewhat overweight.
Breed and genetics
Crossbreds and common European shorthairs tend to be among the longest-lived cats, thanks to their greater genetic diversity. Some breeds have predispositions that can shorten life: hypertrophic cardiomyopathy in the Maine Coon, Ragdoll or Sphynx, polycystic kidney disease in the Persian and related breeds, the breathing problems of very flat-faced cats or the osteochondrodysplasia of the Scottish Fold. Other breeds have a reputation for longevity, such as the Siamese or the Birman. If you choose a pedigree cat, a breeder who health-tests the breeding cats greatly reduces these risks.
Check-ups: more frequent with age
Cats hide illness very well, and many problems are picked up late. An annual check-up with the vet for adult cats, and every six months from the age of ten, allows early detection of chronic kidney disease, hyperthyroidism, diabetes, high blood pressure or dental problems, which are very common in older cats and can be treated if caught early. Blood and urine tests and a blood pressure reading in a senior cat provide a great deal of information. Vaccinations and parasite control suited to its lifestyle complete the prevention.
The mouth matters more than it seems
Periodontal disease and tooth resorption are very common in adult and older cats, and they cause chronic pain that cats disguise. A cat with a sore mouth eats less, loses weight, grooms less and has a poorer quality of life. Gum infection can also affect other organs. Checking the mouth at every visit, having dental cleans when the vet recommends them and, if the cat tolerates it, getting it used to toothbrushing are simple ways to gain quality of life and, probably, years.
Diseases of older cats
The most common causes of illness and death in older cats are chronic kidney disease, cancer, hyperthyroidism, diabetes and heart disease. Many give signs you can spot at home: drinking and urinating more, losing weight despite eating well or more than before, frequent vomiting, sleeping more than usual, no longer grooming, hiding or a change in personality. When you notice any of these changes in a cat over seven or eight years old, do not simply put it down to age: mention it to your vet. The article on signs of ageing in cats has the full list.
A calm, stimulating life
Chronic stress takes its toll too. It is linked, for example, to feline idiopathic cystitis and to behaviour problems. A cat that lives in a predictable environment, with enough resources, meaning litter trays, food bowls, water bowls, scratching posts and hiding places spread around, and without constant conflict with other cats, lives better. Add stimulation to that: daily play, high places, windows to look out of and something new from time to time. An active, mentally occupied cat keeps its weight, muscle and mind in better shape.
In short
A pet cat lives 12 to 15 years on average, and many pass 18. What helps most for yours to live a long life is living indoors or with a protected outdoor space, being neutered, keeping a healthy weight, having a healthy mouth, regular check-ups, more frequent from the age of ten, and a calm, stimulating environment. Genetics and luck count too, but these decisions are the ones in your hands.
A pet cat lives 12 to 15 years on average, and many pass 18. To help it live longer: indoors or a protected outdoor space, neutering, a controlled weight, a healthy mouth, annual check-ups (every six months from age 10) and a calm, stimulating environment.
Educational content from Michipedia, translated from the Spanish original. It does not replace the advice of a vet or a feline behaviour specialist. Every cat is an individual.