How Big Do Russian Hamsters Get?

Large Russian hamster.

If you’re thinking about getting a hamster or have already bought a small hamster that is still growing, you may be pondering. How big do Russian Hamsters grow?

Campbell’s hamsters and winter white hamsters are two kinds of Russian dwarf hamsters often kept as pets and the most popular animals out there. Pet shops often use the term fascinating in the names of these adorable animals to describe fur colors that vary from those of the average hamster.

They may be found in semi-desert and grasslands habitats, depending on the region. Russian winter white dwarf hamsters are native to Russia, and they live in conditions similar to those of their Campbell counterpart. 

In the following article, learn more about how big Russian hamster breeds may grow, as well as some of the factors that influence the size of a specific hamster.

Physical Appearance They Can Grow

Campbell’s Dwarf Hamsters

The Campbell’s dwarf hamster’s size tends to vary based on where it is lives in the environment. For example, a wild hamster experimented in Mongolia had an overall body and head length around 3.1 inches, an estimated foot length around 0.53 inches, and even a tail length measuring around 0.20 inches. They grow proportionately bigger in captivity because commercialized pet food and fruits offer more nutrients than the food they would find in their natural environment. While the lips and cheeks are covered in white fur, the remaining parts covering all over the face will be greyish or brownish fur. Black and short dorsal stripes run down the middle of the back. The whitish coating of its feet and hands helps them keep warm in cooler climates, like those found in Mongolia and other Asian nations.

Winter White Dwarf Hamsters

Winter white dwarf hamsters may be made with a pearlescent appearance at the top of their standard coloration. Over the year, there is an enormous growth in body composition with a head length of 70 to 90 mm, a tail sizing of 5 to 15 mm, and legs that measure 11 to 15 mm. Mostly during winter, which is their lowest peak, the bodyweight of males varies between 0.67 to 1.59 oz, while that of females varies from 0.67 to 1.59 oz. 

They are significantly hefty when humans are handling them. This hamster has an estimated lifetime of one to three years throughout captivity, or it may survive for far longer periods of time. Their average lifespan in the wild is believed to be as short as one year. A fully developed hamster may weigh between 1/5 and 2 ounces when fully grown. This creature has enormous black eyes and is larger in size than the Campbell. Aside from that, it has the smallest ears and denser fur.

Contrary to the common name, this breed has a diverse range of colors that do not restrict itself to white. A grayish brownish top part of the body with a whitish-gray belly split in the middle by three different arches distinguishes it in its nature. During wintertime, the fur will grow lighter in color and become even more whitish. Additionally, modified color variants such as yellow, blue, camel, brown, cream, and merle are available, but they do not change colors as natural ones do.

Major Factors That Affects The Size Russian Hamsters

Captive Lifestyle

Most dwarf hamsters are very outgoing and congregate in large groups, and they thrive when they can spend their time with others who are also of their breed. Russian hamsters love to be among others of their breed. Campbell’s hamsters may coexist alongside their kinds. However, they cannot coexist with winter white hamsters or any other species. Both types of dwarf hamsters need living space that is approximately two sq. ft; to live comfortably. Aside from food, these nocturnal hamsters require additional accessories, including exercising wheels and chewing toys. Both types of hamsters need feeds centered on commercial mixes specifically formulated for the hamster. If you have any concerns about whether commercial meals are appropriate for your companion, you should consult your veterinarian. Finely sliced vegetables are a good source of nutrition for winter white and Campbell’s hamsters when fed in tiny quantities. Just rest assured that you only give them veggies that are safe and suitable for their needs.

Life Expectancy

There isn’t much of a difference in the average lifespan of these hamsters. Campbell’s dwarf hamsters typically live between one and two years, but it is viable to live longer if given a chance to survive. Winter white hamsters have a lifespan of one and a half to two years, with some variations. In captivity, hamsters raised on a healthy balanced diet from an early age are much less prone to have digestive issues later in life. However, due to a scarcity of food in the wild, wild hamsters have a shorter life expectancy than captive hamsters.


Although genetics has a lesser influence in determining the sizes of a hamster rather than its breed, it is still something that may affect where your hamster lies inside the spectrum of its breed’s size distribution. When two bigger hamsters are mated together, the offspring they produce will be likely to be closer to when two small hamsters are bred together.


It is the most crucial factor to look out for. In most cases, hamsters will fall within a specific range that varies to their breed. However, there are few exceptional cases. These hamsters are diminutive but have extensive ranges that lead to diverse sizes within every species.

Hamster Habits

Nocturnal animals, such as hamsters, are more comfortable exploring at night than during the day. In the wild, they reside and reproduce in the burrow made by themselves. Hamsters will primarily preserve food in their burrows. In hot areas, wild hamsters may stay cool by burrowing underground. These hamsters are incredibly sociable, whereas others prefer to be alone throughout their lives. 

If the temperature drops below freezing, wild hamsters will hibernate. They will occasionally awaken from their hibernation in order to consume food. If there is insufficient food stockpiled, hamsters will await to hibernate until they have a sufficient amount of food to consume.


We hope your query about how big Russian hamsters can grow has been addressed in this article. In other measures, whether you’re a pet owner or a keeper of a large, well-known herd, you’ll certainly discover a suitable pet to accommodate your wants and needs.

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