Chicken feed cost calculator, explained

Backyard layer-feed cost runs roughly $4–6 per hen per month at 2026 retail. A 6-hen flock costs $25–35/month; 12 hens $50–70/month; 20 hens $80–115/month. Three levers actually move that number: buy 50-lb bags from a feed mill, not 25-lb bags from a big-box, and switch to a vertical-sided feeder. Together they drop monthly feed cost 30–40% without changing flock size or feed type. Free-ranging trims another 10–30% in growing season.

The math under the hood is simple: lb/month from the feed-amount calculator × your local per-pound feed price. Everything below is either an input you control (bag size, source, waste loss) or a story to fold in (heavy breeds, free-range, season). Cost-per-pound numbers on this page are 2026 spot observations across feed-mill house brands and name-brand retail; local prices vary, sometimes a lot.

Monthly cost by flock size and per-pound price

Lb/month comes from the calculator at standard layer baseline. The three cost columns ($0.44, $0.52, $0.60 per pound) span 2026 observed-range from feed-mill house brand at the cheap end to name-brand pellet at major retail at the top end. Pick the column that matches what your local mill or store actually charges — the column-spread is wider than most in-flock variables.

Flock	Lb / month	@ $0.44/lb	@ $0.52/lb	@ $0.60/lb
3 hens	20–30	$11	$13	$15
6 hens	40–60	$22	$26	$30
10 hens	66–99	$36	$43	$50
12 hens	79–119	$44	$52	$60
20 hens	132–198	$73	$86	$99

Cost columns use the midpoint of the lb/month range. Heavy-breed flocks (Brahma, Jersey Giant) bump these ~20%; 4–8 hr/day run access in growing season drops them roughly 25–30%. The lb/month range is calculator-driven; the heavy-breed bump and free-range reduction are directional adjustments, not extension-sourced precision.

Buy 50-lb bags unless your flock can't finish them

50-lb bags cost 15–25% less per pound than 25-lb bags at the same brand and formulation. A typical spread:

25-lb bag at $14 retail = $0.56/lb
50-lb bag at $24 retail = $0.48/lb
Per-month savings, 6-hen flock: $4–6/month, $50–70/year

50 lb wins for any flock burning more than 30 lb/month (roughly 3+ standard layers). Below that, the 25-lb bag is better — open feed loses palatability within 4–6 weeks, so buying ahead is throwing the per-pound discount back out as stale-feed waste. My default for anyone past 3 hens is the 50-lb bag, sealed in a metal trash can with a tight lid; for 1–2 hens, the 25-lb bag is the right size and the per-pound math is a distraction.

Call the feed mill before you buy at the big-box

Local feed mills (look for “feed and seed” in rural-route towns, or your county's Tractor Supply if they stock house brands) sell house-brand layer feed at 20–30% below name-brand retail at the same nutritional spec. A 6-hen flock saving 25% on the bag spends ~$70/year less. The conversation takes ten minutes and is the single highest-leverage thing on this page — make the call before you commit to a brand.

Order-of-magnitude pricing in 2026:

Feed-mill house brand (50 lb): $20–24
Tractor Supply house brand (50 lb): $22–28
Major name-brand (Purina Layena, Nutrena Country Feeds, 50 lb): $26–32
Specialty / organic (50 lb): $40–55

Throw out the open trough — it's costing you 25% a month

Open trough feeders waste 15–30% of feed before any deliberate fix. The calculator outputs feed CONSUMED; what you actually BUY is consumed plus waste, and the spread between the two is where most backyard flocks bleed money. Three fixes that pay back fast:

Vertical-sided feeders with anti-scratch grills. PVC or galvanized treadle feeders cost $30–60 and drop waste from ~25% to ~5%. Payback in 6–10 months on a 6-hen flock. This is the single highest-ROI piece of equipment on the page; if you're still on a hanging open trough, swap it before you re-shop feed brands.
Feeder under shelter or with a rain hood. Open feeders left in rain mold within 12–24 hours; birds reject moldy feed and you toss the rest. A simple shed roof or flashing hood runs $10–25.
Galvanized lidded feeder + metal trash-can storage. Rats and mice eat 1–2 lb/day per rat from open feed. A treadle or lidded feeder plus closed feed in a metal trash can with a tight lid eliminates rodent shrinkage entirely. Cheap plastic bins don't count — rodents chew through them in a week.

Free-ranging is welfare first, savings second

A 6-hen flock at $0.52/lb feed pricing pays $26/month at full confinement. Adding 4–8 hr/day run access on lush spring pasture drops commercial feed intake by 25–30% — saving $6–8/month for 4–6 months of growing season. Annual savings ~$30–40 for the typical mid-zone-6 backyard. Real money, but not transformative; treat the feed reduction as a side benefit of giving the birds room to range, not as a reason to range them.

Don't confuse supplement-range with free-range as primary feed — that doesn't work. Even mostly-ranged flocks need 50%+ of calories from a balanced commercial ration for protein and calcium. Backyard pastured-only experiments produce thin shells and stalled lay rates within a couple of months; the savings are on the supplement portion, not the base ration.

Penciling out a year: the $315–335 worksheet

For a 6-hen layer flock at typical 2026 pricing ($0.52/lb, 50-lb bags from a feed mill):

Base annual feed cost: ~$310 (6 hens × $0.52/lb × 100 lb/hen-year)
Free-range savings, 5 months growing season: −$40
Oyster shell free-choice: ~$15 (3–4 bags/year @ $4 each)
Treats / scratch / mealworms: $30–50 (optional)
Estimated annual feed budget: $315–335

That's for active layers in production. Pullets cost less (~60% of layer rate); chicks the first 8 weeks cost much less (~35% of layer rate). Add roughly $40 in starter+grower per chick raised from hatch to point-of-lay. The line most new keepers get wrong is assuming the eggs pay back the feed bill — at $315–335/year for 6 hens producing 4–5 dozen/hen-month, you're landing near $0.30–0.50 per dozen on feed alone, which is close to but rarely under store-egg pricing. Backyard flocks pay back in egg quality and self-sufficiency, not unit cost; budget for the feed bill in full and any savings is a bonus.

Plug your flock into the calculator

The chicken feed cost calculator does the multiplication for you — enter flock size, life stage, breed, free-range %, your local per-bag price, and a waste estimate; it outputs $/month + $/year + bags-per-year + reorder $-cycle. Mixed flocks (5 layers + 3 pullets) have a second-group toggle so you don't need to run it twice. The waste slider surfaces the gap between feed CONSUMED (engine math) and feed PURCHASED (what you actually buy at the mill), which is where most real budgets drift from calculator output. The lb-only feed amount calculator is still there if you only need the lb/day + bag-pick math.

Common questions

How much does it cost to feed chickens per month?

Roughly $4–6 per hen per month at typical 2026 layer-feed prices ($22–28 per 50-lb bag). A 6-hen flock runs $25–35/month; 12 hens runs $50–70/month; 20 hens runs $80–115/month. Heavy breeds bump cost ~20%; free-range supplement of 4–8 hr/day saves 10–30% in growing season. The single biggest variable is local feed pricing — feed-mill house brands often run 20–30% cheaper than name-brand bagged feed at the same nutritional spec.

What's the cost difference between 25-lb and 50-lb feed bags?

50-lb bags run 15–25% cheaper per pound than 25-lb bags at the same brand and formulation. A typical price spread: $14 for a 25-lb bag = $0.56/lb; $24 for a 50-lb bag = $0.48/lb. The 50-lb bag wins on cost-per-pound for any flock burning through more than 30 lb/month. Smaller flocks (1–3 birds) using less than 25 lb/month should stick with 25-lb bags — open feed loses freshness within 4–6 weeks regardless of bag size.

Does free-ranging save on feed cost?

Yes, modestly. A 4–8 hr/day run-access flock reduces commercial feed intake by 10–30%, depending on pasture quality and season. For a 6-hen flock at $30/month base feed cost, free-range savings runs $3–9/month. Over a year that's $36–108 — meaningful but not transformative. The bigger value of run access is welfare, not feed savings; treat the feed reduction as a side benefit.

Are eggs from a backyard flock cheaper than store-bought?

Per egg, no — almost never. Backyard layer feed at $4–6/hen/month works out to roughly $0.30–0.50 per dozen (assuming 4–5 dozen eggs/hen/month at peak production). Store eggs run $3–6/dozen at 2026 grocery prices. The math is close, and that's BEFORE coop construction, bedding, equipment depreciation. Backyard chickens win on egg quality and self-sufficiency, not unit cost. The 'free eggs from chickens' framing is wrong; budget for $4–6/hen/month and any savings beyond that is a bonus.

How do I reduce chicken feed costs?

Three real levers: (1) Buy the right size bag — 50-lb saves 15–25% per pound vs 25-lb. (2) Buy from a feed mill, not a big-box pet store — house brands at the mill often run 20–30% cheaper than name-brand bagged feed. (3) Reduce waste — open trough feeders waste 15–30% of feed; switch to vertical-sided feeders with anti-scratch grills. Together these three can drop monthly feed cost 30–40% without changing flock or feed type. Free-ranging adds another 10–30% reduction in growing season.

Is organic chicken feed worth the price premium?

Personal value call. Organic layer feed runs 60–100% more than conventional at the same protein spec — a 50-lb bag at $40–50 vs $22–28. The eggs are nutritionally identical at the same protein percentage; organic certification covers input choices (pesticides, synthetic fertilizers), not bird health or egg quality. If you're already paying for organic for your own household reasons, extending that to feed is consistent. If the math is the question, conventional layer feed at the same protein spec produces equivalent eggs at half the cost.

Related calculators and pages

By Jimmy L Wu. Reviewed 2026-05-02. Lb/month figures come from the feed amount calculator engine; $-cost composition (per-pound multiplication, waste adjustment, multi-group summation, ±15% annual sensitivity) lives in the chicken feed cost calculator engine. Per-pound retail pricing reflects 2026 spot observations across feed-mill house brands and name-brand retail; local prices vary. Free-range supplement reduction range and waste-loss percentages are HatchMath methodology. Not veterinary advice — for sick birds or any animal-health emergency, consult an avian or livestock veterinarian, or your county Cooperative Extension office.