How many eggs do chickens lay?
The hatchery catalog will sell you a year-1 peak number — 320 from a Golden Comet, 300 from an ISA Brown — and that's the wrong number to plan around. A productive backyard hen averages about 5–6 eggs per week in her first laying year, drops to roughly 80% of that in year 2, and 65% in year 3. The right way to size a flock is the 4-year total, not the year-1 peak — and on that metric a Plymouth Rock and a sex-link end up within 10–15% of each other.
The numbers below come from hatchery breed standards (Murray McMurray, Meyer, Cackle 2026 catalogs), Penn State1 and Mississippi State2 extension data on ovulation timing, and US household egg-consumption surveys for the flock-sizing logic. Backyard reality runs 10–20% under any catalog peak — that gap is baked into the recommendations, not something you should pad on top.
What one hen actually produces in a week
Per-week is the cleanest unit. Hens never lay 7 days in a row sustainably — the ovulation cycle is slightly longer than 24 hours, so each egg shifts a little later in the day until the hen skips one and resets. Anything above 6 eggs/week from one bird is a short-window peak, not a planning baseline.
| Window | Productive hen (peak) | Mature hen (year 2) | Older hen (year 3+) |
|---|---|---|---|
| Per day | 0.7–0.85 | 0.55–0.7 | 0.3–0.55 |
| Per week | 5–6 | 4–5 | 2–4 |
| Per year | 200–280 | 160–225 | 90–180 |
A flock of 6 productive hens averages 4–5 eggs per day — not 6. Most US households use 4–6 eggs per person per week; a 4-person household needs 16–24 eggs/week, which 4–5 productive hens cover comfortably with a small surplus.
My default is to size a flock off the “mature hen” column, not the peak. Year 1 is the honeymoon — birds are new, the coop is clean, the photoperiod cooperates. Year 2 is the steady state you actually live with. If your year-2 numbers cover the household, year-1 is gravy and year-3 isn't a crisis.
Which breeds actually earn their feed
| Breed | Eggs/year (peak) | Class |
|---|---|---|
| Leghorn (white) | 280–320 | Production |
| Golden Comet / Red Star (sex-link) | 280–320 | Production hybrid |
| ISA Brown | 300+ | Production hybrid |
| Rhode Island Red | 220–280 | Heritage / dual-purpose |
| Plymouth Rock | 200–280 | Heritage / dual-purpose |
| Australorp | 250–300 | Heritage / dual-purpose |
| Wyandotte | 200–240 | Heritage / dual-purpose |
| Buff Orpington | 175–220 | Heritage / dual-purpose |
| Easter Egger | 200–280 | Mixed / colored eggs |
| Marans | 150–200 | Heritage / dark eggs |
| Silkie | 100–120 | Ornamental (small eggs) |
| Polish | 150–200 | Ornamental |
These ranges reflect each breed's genetic potential under good management — adequate light, complete layer feed, low stress, predator-secure coop. Real-world backyard production runs 10–20% under the catalog number because of weather, molt timing, the occasional broody pause, and the specific mix of birds in a small flock. A 220-eggs-per-year breed averaging 180 in your coop is normal, not a problem.
If I were starting a backyard flock today, I'd build it around Australorps and Plymouth Rocks. Both crack 200 eggs/year in good conditions, both have temperaments that don't terrorize a small backyard, and both stretch the laying curve into year 4. Skip Marans for egg volume — buy them because the chocolate eggs are gorgeous and you're willing to pay for it. Silkies and Polish are pets that occasionally produce; don't price them on eggs/year.
Production breeds vs heritage — the long-term tradeoff
The temptation with hatchery catalogs is to optimize for the year-1 number. A Golden Comet at 320 eggs versus a Plymouth Rock at 230 looks like a clear win. For a backyard flock that keeps birds 3+ years, it's the wrong comparison.
- Production sex-links (Golden Comet, Red Star, ISA Brown, Black Star, Cinnamon Queen) peak hardest in year 1 and decline sharply. Year 3 is often half of year 1. Higher rates of reproductive issues — egg yolk peritonitis, prolapse, calcium-related fragility — by year 4 in this class.
- Heritage dual-purpose breeds (Plymouth Rock, Rhode Island Red, Australorp, Wyandotte) lay fewer eggs in year 1 but stretch the curve. A Plymouth Rock at year 4 often lays as much as a sex-link at year 3.
- Total eggs over 4 years are often within 10–15% between a top sex-link and a top heritage breed — the volume difference shows up almost entirely in year 1.
The production sex-link tradeoff isn't worth it past year 2 for most backyard flocks. Avoid the all-sex-link flock — the year-3 cliff is steep enough that you're rotating birds twice as often as a heritage flock for roughly the same 4-year egg total. A 50/50 mix is the version I'd build: half production sex-links for year 1–2 volume, half heritage for the long-tail contribution and the more durable temperaments. Rotate in 2–3 new pullets every 12–18 months and the flock holds steady output without falling into the year-3 dip.
How many hens for your household
The shortcut that works for most US households:
| Household size | Eggs/week needed | Suggested flock |
|---|---|---|
| 1–2 people | 8–12 | 3 hens |
| 3–4 people | 15–24 | 5–6 hens |
| 5–6 people | 25–36 | 7–9 hens |
| Sharing/selling surplus | 40+ | 10–12 hens |
The flock numbers assume average production breeds and account for winter slowdown, molt pauses, and the occasional broody bird dropping out for a few weeks. Use the coop size calculator to verify the housing footprint matches the flock size.
If you're between two ladders, take the bigger flock. A small surplus moves easily — neighbors, coworkers, the freezer in pickled form — but a chronic shortage means buying eggs at the store every molt cycle, which is the experience most new keepers wanted to escape. Don't fractionalize: a 4.5-hen recommendation rounds up to 5, not down to 4.
What the catalogs don't advertise
The catalog year-1 number is the marketing number, not the planning number. Four reasons it almost never lines up with what shows up in your nest box:
- Year-1 production assumes ideal conditions. 14+ hours of light, complete layer feed, no stress events, no extreme heat or cold. Real backyard conditions usually knock 10–20% off the published number.
- Most breeds slow or stop in molt. 8–12 weeks of zero or near-zero production every fall, even with supplemental light. The catalog year-1 number rarely accounts for this.
- Pullets in their first 4–8 weeks lay smaller, irregular eggs. Don't count point-of-lay weeks as full production weeks — they aren't.
- Hatchery sex-link “commercial” numbers come from controlled-environment houses — climate-controlled barns at 22°C, 16h light, full ration, replaced annually. A backyard coop in Vermont in February is not that building.
Common questions
How many eggs does a chicken lay per day?
Backyard hens at peak production lay roughly one egg every 24–28 hours — call it 5–6 eggs per week, or 0.7–0.85 per day. Hens never lay 7 days a week sustainably; the ovulation cycle is slightly longer than 24 hours, so each egg shifts a little later in the day until the hen 'skips' a day and resets. A flock of 6 productive hens at peak averages 4–5 eggs per day, not 6.
How many eggs per year for a typical backyard hen?
200–280 eggs in the peak laying year (roughly age 6–18 months) for most popular backyard breeds. Production-bred sex-links (Golden Comet, Red Star, ISA Brown) push 280–320; heritage breeds (Wyandotte, Buff Orpington, Plymouth Rock) sit at 180–250; ornamental and bantam breeds (Silkie, Polish) lay 80–150. By year 2, expect ~80% of peak; by year 3, ~65%; by year 4+, sporadic.
Which backyard breed lays the most eggs?
Leghorns and the modern sex-link production hybrids (Golden Comet, Red Star, ISA Brown, Black Star) are the highest layers — 280–320 eggs in their peak year. The tradeoff is that production sex-links drop sharply after year 2 and have higher rates of reproductive issues by year 3. For total eggs over a 4-year span, heritage breeds like Plymouth Rock, Rhode Island Red, and Australorp often equal or exceed sex-links because their decline is gentler.
Why do chickens lay fewer eggs in winter?
Daylight, mostly. Hens need ~14 hours of daylight to maintain laying and stop or slow below ~12 hours. Late fall through early spring — roughly October through February in most of North America — falls below the threshold. Cold itself doesn't stop laying directly; in fact, hens with adequate insulation and feed lay fine in below-freezing temperatures as long as photoperiod is maintained. Add supplemental light if you want winter eggs, or accept the natural pause.
Do hens lay year-round?
Not naturally. Backyard hens follow the seasonal photoperiod — production peaks in spring and summer, drops in fall, often pauses through winter, then resumes in early spring. The flock will also pause for 8–12 weeks of annual molt, usually in late summer or fall. Adding supplemental light extends the laying season but doesn't eliminate the molt pause. Commercial laying operations get year-round production by combining controlled light, controlled temperature, and replacing the flock every 12–18 months — none of which is the backyard model.
How long do hens keep laying?
Most hens lay productively for 3–4 years, then slow to sporadic laying for several more years. Lifespan is breed-dependent: heritage breeds can live 8–12 years and lay occasionally well into year 5–6. Production sex-links often slow markedly by year 3 and have higher mortality from reproductive issues by year 4–5. The economic-laying window (where eggs roughly cover feed cost) is typically year 1 and year 2.
Related calculators and pages
- Why aren't my chickens laying eggs? →
- Coop size calculator →
- Feed amount calculator →
- Best feed for laying hens →
- Methodology + sources →
- 1. Penn State Extension — laying hens — anchor for per-day ovulation timing (slightly-greater-than-24-hour cycle, 5–6 eggs/week sustainable peak). ↩
- 2. Mississippi State Extension — poultry — cross-confirmation on lay-cycle biology and university extension breed-comparison data on heritage-vs-production lay curves and longevity ranges. ↩
HatchMath methodology (synthesized, not extension-sourced): Per-breed peak-year ranges synthesize hatchery catalog standards (Murray McMurray, Meyer Hatchery, Cackle Hatchery 2026 catalogs); year-2 (~80% of peak), year-3 (~65%), year-4+ (sporadic) decline curves; flock-sizing recommendations use US household egg-consumption surveys (~4–6 eggs per person per week) plus a productive-week buffer for molt and broody pauses. Backyard production typically runs 10–20% below catalog ranges.
By Jimmy L Wu. Reviewed 2026-05-02. Not veterinary advice — for sick birds or any animal-health emergency, consult an avian or livestock veterinarian, or your county Cooperative Extension office.