How Big Do Leopard Geckos Grow?

Leopard GeckoCalling all prospective leopard gecko owners! Before you buy a leopard gecko vivarium, make sure you know how big your leopard gecko is expected to grow.
Why? Living in the right size tank is essential for a leopard geckos health and wellbeing. And if you buy the wrong size, you’ll only need to buy a bigger one further down the line.
Read on to find out how big leopard geckos grow and what size vivarium they need.

Average leopard gecko size

The size of a leopard gecko mostly depends on age and sex (although there are other factors that affect leopard gecko size that we’ll get onto later).
Male leopard geckos tend to be the largest of the species, measuring between 8 and 11 inches on average. Female leopard geckos tend to be slightly smaller – generally 7 or 8 inches long.
Leopard gecko hatchlings are TINY – between 3 and 4 inches long – and it takes about a year for a leopard gecko to reach its full size.

Hatchlings Males Females
Length 3-4 inches 8-11 inches 7-8 inches
Weight 2-5g 60-80g 50-70g

How diet affects leopard gecko size

Just like any animal, your leopard gecko will be much more likely to grow to its full size if it’s well-nourished. For this reason, it’s essential to make sure your gecko has a healthy and nutritious diet. We’ve got more information about what to feed your leopard gecko in our leopard gecko setup guide – take a look to find out what kind of food your leopard gecko needs.


Choosing the right size vivarium

Now you know how big your leopard gecko is expected to grow, it’s important to choose the right size vivarium for it to live in.

Leopard geckos don’t need a large tank but you still need to make sure their living environment isn’t too small. We’d recommend a 2ft x 1ft x 1ft vivarium for an adult leopard gecko – just like the ones below. And if you don’t find one you like here, there are loads more great vivariums to choose from on Amazon.

And there you have it – now you know how big leopard geckos get and how to choose the right size tank, stay on Vivarium World for even more leopard gecko care advice: