Keeping hamsters as pets can bring joy and companionship, but it also comes with the reality of their relatively short lifespan. On average, pet hamsters live for about two years, with some living up to three years.
Hamsters reach sexual maturity at just 6 weeks old, and signs of aging start to show around 15 months of age.
This article explores the lifespan of pet hamsters and how it compares to human age.
Pet Hamster Lifespan: How Long Do Hamsters Live?
On average, pet hamsters live for 1.5-2 years, with the maximum lifespan being around 3 years. Research from the Royal Veterinary College (RVC) revealed that the average age at death for hamsters is 21 months.
There is conflicting information about the lifespan differences between Syrian hamsters and dwarf species, with some claiming Syrians live longer while others say dwarfs do. However, both types have similar lifespans influenced by factors like genetics, diet, activity level, stress, access to vet care, and breeding status for females.
Hamster Years to Human Years Chart
Curious about your hamster’s age in human years? Check out the chart below based on available research for Syrian hamsters.

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Hamster Life Stages Explained
Explore the different life stages of hamsters and how they correspond to human development. Keep in mind that individual hamsters may mature at different rates.
Weaning Period
Weaning for hamsters typically begins around three weeks and lasts until they are about four weeks old. At this stage, they can eat solid food independently.
Comparatively, a 3-week-old hamster is similar in development to a 6-month-old human baby.
Puberty
Hamsters reach sexual maturity around 6 weeks of age, with females usually maturing slightly later than males. Puberty signs include changes in behavior and physical appearance.
By human standards, a 6-week-old hamster would be equivalent to an 11.5-year-old human going through puberty.