How Big Do Brahma Chickens Get? [Average Size Guide]

If you’re thinking about raising Brahma chickens, you may have some questions about it? What’s their egg production like? How large do they get?

This article provides a comprehensive overview of the characteristics of this breed of chicken and could save you time and money in the long run.

How Big Do Brahma Chickens Get?

The Brahma chicken is a large breed of chicken that originated in the United States. They are known for their huge size and great egg production. In fact, they’re the largest breed of chicken in the world. The average mature Brahma hen weighs between 8 and 11 pounds! A full-grown Brahma rooster can weigh as much as 15 pounds or more.

Brahmas are typically too large to be kept in most backyard coops and runways. If you keep them outside, they will need plenty of space to roam around freely. If you want to keep your Bramahas inside, be sure to provide them with plenty of space so that they don’t feel crowded or stressed out by being confined to a small area.

Average Size Of A Brahma Chicken

The average size of a Brahma chicken is about 12 to 14 pounds. They are known for their large, wide bodies and long tails. They also have large, downy combs and wattles that hang over their beaks. The legs and feet are covered with scales rather than feathers, which makes them look more like reptiles than birds.

Brahma chickens come in a variety of colors ranging from white to black, with most being a mixture of black, red, and white or brownish-red. The males tend to be larger than the females, with roosters averaging 16 pounds while hens are typically 14 pounds or less.

At What Age Are Brahma Chickens Full Grown?

Brahma chickens are typically full-grown by 8 months of age but may take up to 10 months. They reach their adult size at 9 to 10 months, but the males are not sexually mature until they are 18 months old and the females are not sexually mature until they are 20 months old.

The roosters can be aggressive toward other males during mating season, so it’s important to keep them separated from other male birds during this time.

How Much Space Do Brahma Chickens Need?

Brahma chickens can be kept in a small yard or even in an apartment with little space. They will not require much room as long as they get their food and water every day.

The ideal size for chicken coops is about 3 feet by 4 feet by 6 feet high for each adult bird. This means that each adult bird needs about 24 square feet of living space which is more than enough for them to live comfortably in their coop at all times.

What Size Eggs Do Brahma Chickens Lay?

The average size of the egg depends on the breed of chicken and not on the size of the hen. A Brahma chicken will lay a very large egg and a small chicken will lay a small one.

The average size for Brahma eggs is about 2-3 times larger than a normal-sized egg, but this is not always the case since there are other factors that come into play.

The color of the egg of Brahma chickens will vary depending on the color of the hen, but they usually range from white to brown. The consistency of their shell also varies from very thin to hard shells, depending on how much calcium they get from their diet.

The weight of a Brahma egg can be as heavy as 4 ounces or more than an ounce lighter than that depending on its size and whether it was fertilized or not.

When Does a Brahma Chicken Start Laying?

The average Brahma hen will begin laying eggs at about 6 to 7 months of age. The breed is known for its large size and long lifespan, which means it takes a long time to reach maturity. The hen’s first egg should be expected about 2 months after she starts laying, on average.

If you’re planning to keep your Brahma chickens as pets rather than for meat or eggs, you may wish to wait until they’ve started laying before you decide whether or not they’re mature enough to be separated from their parents.

In general, it’s best to wait until the Brahma chicken is 8 months old before you start thinking about separating her from her siblings and mother. At this point, she should have reached adulthood and be ready to lay eggs on her own.


Brahma chickens are considered a commercial breed of chicken primarily due to their large size. As adults, Brahma hens weigh between eleven and fifteen pounds and the males are on average around sixteen pounds. This is about the same weight as an average-sized rooster for a typical barnyard chicken. The large size of Brahma chickens makes them ideal to use as egg-laying machines or be used for other types of production purposes on farms.