How Much Does a Backyard Chicken Weigh? By Breed

A standard laying hen runs 4 to 6 lb, a dual-purpose bird 6 to 8, a meat bird 8 to 12. Weights by breed, and what weight tells you.

By Zakaria November 1, 2026 2 min read Save to Pinterest

A black hen with iridescent plumage standing on bare ground in a run — Photo: erwinbosman, Pixabay Content License, via Pixabay

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A standard hen is 4 to 6 pounds. The useful part is not the average but what a bird’s weight tells you about space, dosing and health.

The short answer

Standard laying hens weigh 4 to 6 pounds, dual-purpose breeds 6 to 8, purpose-bred meat birds 8 to 12 at processing, and bantams 1 to 2. Cockerels run 1 to 2 pounds heavier than hens of the same breed, about 20 to 25 percent. Weight matters for three reasons: space allowance, since large breeds need 5 to 6 square feet of floor and 10 to 12 inches of roost; medication dosing, which is weight-based and the commonest source of under-dosing; and health monitoring, where a steady decline over weeks is the earliest reliable warning. Judge condition by feeling the keel, not the number.

Standard hen 4–6 lb, dual-purpose 6–8, meat bird 8–12, bantam 1–2
Cockerels +1–2 lb on the same breed
Weight sets space and roost allowance
Dosing is by weight — the usual cause of under-dosing
Feel the keel to judge condition, not the scale

Weights by breed

breed	hen	cockerel
Leghorn	4–4.5 lb	5.5–6 lb
Ancona	4.5 lb	6 lb
Rhode Island Red	6–6.5 lb	8–8.5 lb
Australorp	6–6.5 lb	8.5 lb
Wyandotte	6.5 lb	8.5 lb
Sussex	7 lb	9 lb
Plymouth Rock	7.5 lb	9.5 lb
Orpington	8 lb	10 lb
Brahma	9–10 lb	12 lb
Jersey Giant	10–13 lb	13–15 lb
Silkie (bantam)	1.5–2 lb	2–2.5 lb
Cornish Cross (meat)	8–10 lb at 6–8 weeks	—

What the weight changes

weight class	coop floor	roost length
Bantam	2 sq ft	6–8 in
Standard	4 sq ft	8–10 in
Large breed	5–6 sq ft	10–12 in

Wormers and medications are dosed by weight

Guessing a bird’s weight is the commonest reason a treatment fails — under-dosing clears the visible symptoms and leaves a resistant population behind. Weigh the bird before dosing, not after the treatment has not worked.

Weighing, properly

Luggage scales plus a soft bag or sling
Weigh the bag empty and subtract
Evening, lifting the bird off the roost while it is calm
Record it, with the date
Monthly — a single weight tells you almost nothing; a series tells you everything

Reading condition by hand

Keel firm with muscle either side — healthy
Keel sharp and prominent — underweight. Parasites, disease, or losing out at the feeder
Keel hard to find under fat — over-conditioned. Usually too much scratch or kitchen scraps against layer feed

Over-conditioned hens lay poorly and are prone to fatty liver and prolapse, so the fat end of the range is a real problem rather than a cosmetic one.

Common questions

How much does an average backyard chicken weigh?

A standard laying hen is 4 to 6 pounds, a dual-purpose breed 6 to 8, and a purpose-bred meat bird 8 to 12 at processing weight. Cockerels of the same breed run roughly 1 to 2 pounds heavier than hens. Bantams are a different scale entirely at 1 to 2 pounds. Those are mature live weights; a bird in heavy moult or at the end of a laying year sits at the lower end of its range.

What do the common breeds weigh?

Among layers, a Leghorn hen is about 4 to 4.5 pounds and an Australorp or Rhode Island Red 6 to 6.5. Dual-purpose Orpingtons and Sussex run 7 to 8, Wyandottes around 6.5, and Plymouth Rocks 7.5. At the heavy end, Brahmas reach 9 to 10 pounds and Jersey Giants 10 to 13, the largest standard breed. Cornish Cross meat birds reach 8 to 10 pounds in six to eight weeks, which is a different growth pattern from anything above.

How much does a rooster weigh compared to a hen?

Roughly 1 to 2 pounds more in the same breed, which is about 20 to 25 percent. A Rhode Island Red hen at 6.5 pounds pairs with a cockerel around 8.5; an Orpington hen at 8 with a cockerel at 10. The difference is mostly frame and muscle rather than fat, and it is why a cockerel needs more roost space and why mixed-flock bullying is a physical mismatch rather than just a temperament one.

Why does chicken weight matter for a backyard keeper?

Three practical reasons. It sets the space allowance — large breeds need 5 to 6 square feet of coop floor against 4 for a standard bird, and 10 to 12 inches of roost rather than 8. It determines dosing for any wormer or medication, which is weight-based and the commonest source of under-dosing. And a bird's weight trend is the clearest early health signal there is: steady loss over a few weeks points to parasites, disease or competition at the feeder long before anything else shows.

How do you weigh a chicken?

Luggage scales with a soft bag or a sling, in the evening when the birds are calm and easy to lift off the roost. Weigh the bag empty first and subtract. Bathroom scales work if you hold the bird and subtract your own weight, but the resolution is too coarse to track small changes. Record it: a single weight is almost useless and a monthly series tells you everything useful.

Is my chicken underweight or overweight?

Feel the breastbone rather than reading the number. A healthy bird has muscle either side of the keel so the bone is firm but not prominent; a sharply protruding keel means it is underweight, and a keel you cannot easily find under fat means over-conditioned. Overweight hens lay poorly and are prone to fatty liver and prolapse, almost always from too much scratch or kitchen scraps relative to layer feed.

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