Backyard Chicken Egg Cost Calculator
Is it cheaper to raise chickens for eggs — or just buy them? Six calculators in one page: true cost per dozen, startup budget, breed picker, store-vs-homegrown payback, feed cost optimizer, and a local-regulation checklist.
The short answer
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Planning estimates, not quotes. Feed prices, breed laying rates, and results vary by region, season, and management. Always check your local ordinances before getting birds.
Worked examples
These worked examples put real numbers on the cost of raising chickens for eggs, using the standard figures from the methodology section.
Example 1 — 6 hens × 280 eggs a year
6 × 280 = 1,680 eggs = 140 dozen a year. Feed at $25/month = $300/year → $2.14/dozen for feed alone. Add $8/month bedding and supplements ($96/year) and the true ongoing cost is $2.83/dozen.
Example 2 — How much does it cost to feed 6 chickens a month?
6 hens × ¼ lb/day = 1.5 lb/day = ~45.6 lb/month. A $24.99 50-lb bag = $0.4998/lb → ~$22.80/month. Free-ranging and fermenting feed typically shave 10–20% off.
Example 3 — How many eggs do 4 chickens lay a week?
4 × 280 = 1,120 eggs/year ÷ 52 = ~21.5 eggs a week (nearly 2 dozen). In winter without supplemental light, expect a 20–40% dip.
Example 4 — Year one vs ongoing
Same 6-hen flock with a $650 startup: year-one cost = ($650 + $396) ÷ 140 dozen = $7.47/dozen. From year two onward, with the coop paid for, it drops to $2.83/dozen — the payback logic in tab 4.
Methodology & sources
The figures behind the math
- Feed intake: ~¼ lb (113 g) of 16% layer feed per hen per day — the standard poultry-extension figure.
- Laying rates: conservative published breed averages for the first two laying years (ISA Brown ~300, Leghorn ~290, Rhode Island Red ~260, dual-purpose ~200–240, Silkie ~120).
- Prices: typical 2025–2026 US retail (50-lb layer feed ~$22–28, started pullets ~$20–30, organic dozen ~$6–7).
- Decline curve: production drops ~10–15% per year after year two; hens stay productive 4–6 years.
How this differs from our other chicken tools
This calculator answers the economics: cost per dozen, startup budget, and store-vs-homegrown payback. For daily ration planning and feed mixing, see our chicken feed lab; for sizing coops, runs, and materials, see our chicken coop lab. Each tool solves a different part of flock planning.
Disclaimer: all figures are planning estimates. Feed prices, predator losses, vet bills, and laying performance vary. Check your city ordinances and HOA rules before getting birds.