Hermit Crab Pets Live Longer Than Dogs

Hermit crabs live longer than dogs! Their lifespan is often more than most other pets. Whether you already have hermit crab pets, or are thinking of adopting a few, it’s important to understand how long you can expect them to live.

In this post, we’ll explore the lifespan of hermit crabs and compare it to other popular pets, including birds, turtles and dwarf hamsters!

By Fred (and Chris) | Updated 05/10/26

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Hermit Crab Lifespan Comparisons

One of the most surprising facts about hermit crabs is their lifespan. Depending on the species of hermit crab (there are over 800 different types), a hermit crab can live as long as 30 years.

The most common type of hermit crab in the U.S. and Caribbean Islands is Coenobita Clypeatus (aka Purple Pincher, Tree Crab, Caribbean Hermit Crab). It is the type of hermit crab that can live the longest in captivity, as much as 30 years when well-cared for.

Dog v. Hermit Crab:

The average lifespan of a dog is 10-13 years. However, this can vary greatly depending on the breed. For example, smaller dog breeds tend to live longer than larger breeds. Additionally, factors such as genetics, diet, and exercise can all impact a dog’s lifespan.

Hermit crab wins!

Cat v. Hermit Crab:

The average lifespan of a cat is 12-16 years, which is slightly longer than the average lifespan of a dog. However, like dogs, a cat’s lifespan can vary depending on breed and lifestyle factors.

Hermit crab wins!

Fish v. Hermit Crab:

Fish are a popular choice for those who want a low-maintenance pet. However, the lifespan of a fish can vary greatly depending on the species. Some fish, such as goldfish, have a relatively short lifespan of only a few years. Other fish, such as koi, can live for up to 30 years.

Toss up, depending on the type of fish!

Birds v. Hermit Crab:

Birds are another popular pet choice, with some species living for decades. For example, a parrot can live for up to 50 years! However, like all pets, the lifespan of a bird is heavily dependent on its care and living conditions.

Birds may win this one, though hermit crabs will live longer than finches and most parakeets.

Hermit Crabs Live Longer Than Most All Household Pets!

To some people, having hermit crab pets may seem odd. But for the rest of us, we know that (Caribbean Purple Pinch) hermit crabs make the best pets!

If you provide their basics (good enclosure, food and water, enrichment activities, correct parameters) they will live long healthy happy lives and provide you with a super cool beachy island-adjacent habitat in your home!

If you are looking for the best selection of hermit crab supplies, at the most affordable prices… here’s my curated collection of Hermit Crab Pet Essentials on Amazon now. Look at the reviews, see the photos of the products in action….