How Big Does A Full Grown Pacman Frog Get

Pacman frogs are great for first time amphibian owners. They are easy to care for, they are hardy and they have an excellent appetite. These frogs are known for their large mouths, claiming their name from the video game.

Due to their hearty appetite and diet, these frogs can grow exceptionally big really fast. Continue reading for how big a full grown Pacman frog can get.

How Big Does a Pacman Frog Get

When you bring your Pacman frog home, if you have purchased it as a baby, it will probably be only around the size of a quarter. Once it has settled into its new habitat and is eating well, you will soon see your frog growing in size.

Size of a Full Grown Male Pacman Frog

A full grown male Pacman frog is anywhere from 2.5 inches to 4 inches (6 cm to 10 cm). Remember they are as long as they are round.

Size of a Full Grown Female Pacman Frog

Female Pacman frogs are larger than the male and can measure anywhere from 4 to 7 inches (10 cm to 18 cm).

Factors Affecting Pacman Frog Size

There are a wide number of factors that can influence your Pacman frog’s size. These include:

Breeding Methods

The overall size of your Pacman frog once it reaches adult size will be determined by how it was bred.

Breeding these frogs is a very time consuming process which must be done properly in order to supply you with a healthy frog. Just the tadpole management alone can take a lot of time.

As a result, the breeding methods used will have an impact on the adult size of your Pacman frog.


As with most things, two Pacman frogs may not grow the same size as another, which is where genetics comes into play. If your frog is bred from a large female and male, then your frog will probably grow to a decent size.

In general, these frogs do not disappoint when it comes to their large size.


It’s important that your Pacman frog gets a varied diet with crickets being the staple food.

The size of your frog will determine the size cricket it needs, but adult Pacman frogs can devour a large cricket with complete ease. These frogs can also eat cockroaches and mealworms.

Adult Pacman frogs have voracious appetites and will even eat other Pacman frogs if they are smaller than them. As a result, you can feed your adult frog pinky mice now and then.

See the Pacman frog food chart here.

Feeding Your Pacman Frog in Captivity

How much your frog eats will also impact its size. Adult Pacman frogs should be given one large meal once a week. This can include up to ten crickets. Most frogs will stop eating when they are full.

Ensure you give the crickets a good dusting and then release them into the enclosure to allow your frog to hunt naturally.


Many Pacman frog owners don’t realize that temperatures can impact the size of your Pacman frog. When the temperatures are not at optimum, there is a risk of your frog going into brumation (hibernation).

During brumation, they do not eat, which can have an overall impact on your frog’s size when fully grown.

Temperatures should be between 75ºF and 85ºF.

When you have a young frog under one year of age, it should not be allowed to brumate. Ensure you provide optimum temperatures and humidity levels to keep your frog from hibernating, helping it continue eating healthy and growing to full size with ease.


These are big frogs that are easy to care for. While they are large in size, they do not need a large enclosure, which adults being more than comfortable in a 10 to 20 gallon enclosure. Provide an optimum habitat with varied diet to help your frog reach its full size.

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