Free calculatorDefaults are prefilled so the estimate appears immediately.
Your Estimate
1.5-2.58 lb feed per day
Daily feed use1.5-2.58 lb
Daily feed cost$0.66-$1.14
30-day feed use45-77.4 lb
30-day feed cost$19.80-$34.06
Bags used in 30 days0.9-1.55
Whole bags to cover 30 days1-2 bags ($22.00-$44.00)
Days one bag may last19.4-33.3 days
Annual feed range548-942 lb
Feed typelayer feed
Formula Used
daily feed range = birds x editable lower and upper daily feed rates per bird
The default 0.25-0.43 lb daily range spans extension examples for mature laying hens; actual use changes with bird size, feed formulation, waste, weather, and production.
The calculator does not apply an automatic forage or cold-weather multiplier because the reviewed sources do not support a universal percentage.
Both daily rates and bag size are editable. For chicks, growers, broilers, bantams, or a prescribed ration, replace the defaults with the feed label or qualified local guidance.
Monthly estimates use 30 days and annual estimates use 365 days.
Costs prorate the entered bag price by feed used; the whole-bag line shows the cash needed to cover 30 days when starting with no feed on hand.
Keep age-appropriate complete feed and clean water available; forage, scratch, and treats do not provide a predictable replacement percentage.
Use the feed label or qualified guidance for chicks, growers, broilers, bantams, prescribed diets, or birds whose condition or intake changes.
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Chicken feeders
Why it follows: Use the daily and monthly feed estimates to compare hopper capacity with the refill schedule you want.
Low-cost: Compare simple hanging or trough designs and the time needed for frequent refills.
Durable: Compare materials, replacement parts, cleaning access, and warranty terms.
Premium: Compare larger or treadle designs only if their capacity and operation fit your flock.
You may not need this if: your current feeder already holds the planned amount, keeps feed reasonably dry, and limits avoidable waste.
Why it's here: This calculator estimates feed, not water. It is here because clean water matters as much as age-appropriate feed, and flock size is the only number either decision starts from. Compare capacity against how often you are willing to refill, and against freezing if your winters reach it.
You may not need this if: your current containers already hold enough between refills, stay clean, and remain usable in the coldest and hottest weather your site sees.
Product listings and seller claims are not proof that an item is safe, predator-proof, code-compliant, or suitable for a climate or site. Verify current dimensions, materials, instructions, warranty, and local needs before buying.
Your chicken plan
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Continue in any order. Your flock size, breed size, feed price, and latest egg estimate carry into the calculators that use them, and stay editable on every page. Values travel in this browser and in the page link — nothing is stored on a server and no account is involved.
A chicken feed calculator estimates a range of pounds a flock may eat per day and per month. It is built for backyard chicken keepers who want a practical feed budget, a better idea of how long their chosen bag size may last, and a quick check on whether the feed type matches the birds' age.
How To Use This Calculator
Enter the number of chickens in the flock.
Choose the life-stage reminder for the type of complete feed.
Edit the lower and upper daily rates using your feed label or measured flock use.
Enter your bag size and local price.
Use the range for shopping and storage planning, then compare it with actual use.
How Is It Calculated?
Formula
daily feed range = birds x editable lower and upper daily feed rates per bird
What The Constants Mean
The default 0.25-0.43 lb daily range spans extension examples for mature laying hens; actual use changes with bird size, feed formulation, waste, weather, and production.
The calculator does not apply an automatic forage or cold-weather multiplier because the reviewed sources do not support a universal percentage.
Both daily rates and bag size are editable. For chicks, growers, broilers, bantams, or a prescribed ration, replace the defaults with the feed label or qualified local guidance.
Monthly estimates use 30 days and annual estimates use 365 days.
Six mature laying hens at 0.25-0.43 pounds per bird per day produce a planning range of 1.5-2.58 pounds daily, or 45-77.4 pounds over 30 days.
Why This Matters
Feed use changes with age, body size, feed formulation, weather, production, waste, and forage quality. A fixed percentage reduction for free ranging can understate purchased feed without evidence from the actual flock. This calculator therefore exposes a range and keeps it editable while reminding keepers that age-appropriate complete feed and clean water remain essential.
Homestead Math calculators are designed to make practical estimates visible. They are intentionally transparent: the inputs are labeled, the formula is shown, and the result is paired with cautions so you can decide what to verify locally before spending money or changing a setup.
Frequently Asked Questions
How much feed does one chicken eat per day?
The reviewed extension examples range from about 0.25 to 0.43 pound per day for mature hens. Use the feed label and your flock's measured use for a better local estimate.
Does free ranging reduce the amount of complete feed needed?
Forage quality and intake vary too much for a universal reduction. This calculator does not assume one; keep age-appropriate complete feed available and edit the range only from evidence for your flock.
How long does a feed bag last?
Divide the editable bag size by daily flock use. The calculator reports a range because consumption and waste vary.
Should I feed scratch grains?
Scratch is a treat, not a complete ration. Use it sparingly and keep the main diet appropriate for the bird's life stage.
Source date: Published April 1, 2008; reviewed/revised May 23, 2024Link and claims checked: 2026-08-01Used for: Layer feed use, age-appropriate feed, indoor and outdoor space, nests, roosts, and first- and second-year egg planning.