Garden calculator · The flock
How much feed will
my flock eat?
Plan the next bag, the monthly feed bill,
and how soon you’ll need to restock.
Your flock. Your feed bag.
Start with the usual estimates, then adjust them to what your adult flock actually uses.
At 2 lb of feed per day
A planning estimate, not a feeding limit.
Actual use varies with birds, weather and waste.
The feed you use. The bags you buy.
You might use part of a bag this month, even though the store sells you a whole one. Keep those two numbers separate.
| Period | Feed used | Bag equivalents |
|---|---|---|
| Day | 2 lb | 0.04 |
| Week | 14 lb | 0.28 |
| Average month | 60.8 lb | 1.22 |
| Year | 730 lb | 14.6 |
Starting with no feed on hand
Buy 2 50-lb bags to cover an average month.
That supplies 100 lb, leaving about 39.2 lb for the next month.
Enter your bag price to see purchase cost and feed-use cost.
An average month is 30.4 days; a year is 365. Assumes the same flock and rate throughout. Feed cost excludes delivery, tax, bedding, housing and other expenses. An annual estimate is not advice to buy a year’s feed at once.
How much does a bag of chicken feed weigh?
Check the net weight printed on your bag. The calculator supports 40 and 50 lb bags, plus a custom weight for other sizes. The bag’s appearance is not a reliable weight measurement.
50 LBUse this number.
Match the bag before comparing prices.
A cheaper bag may simply hold less feed. Divide the bag price by its net weight to compare dollars per pound, then check that you’re comparing the right feed for your birds.
The example label is a teaching diagram, not a product or farm photograph.
A sensible starting point
Use a feed that fits the birds
The defaults here are for adult laying-type chickens. Chicks, growing pullets and meat birds have different feeding needs. Use the appropriate complete feed and its directions.
Do not ration to the calculator
At the default rate, 10 standard hens use about 2.5 lb daily, so a 50-lb bag lasts roughly 20 days. That is a shopping estimate, not a maximum allowance.
Measure what disappears
Keep a short record of feed added and feed left. Divide the pounds used by the days observed. Spilled feed and visitors such as rodents also empty the bag, so inspect the feeder if usage surprises you.
Buy what you can store well
Keep feed dry, protected from rodents, and away from heat. Check the manufacture date and the maker’s storage directions. Use older stock first.
Questions people ask
How much feed do 10 chickens eat a month?
At ¼ lb each per day, about 75 lb in 30 days, or 76 lb in the calculator’s 30.4-day average month. That uses about 1½ of the 50-lb bags; starting empty means buying two, with some left for next month.
Does free-ranging cut the feed bill?
Forage can contribute, but quality and breed matter. Do not subtract a promised percentage from the feed supply. Keep appropriate complete feed available and use your observed bag consumption to refine the budget.
Should I feed differently in winter?
Watch actual intake and body condition as conditions change. Use a complete feed appropriate for the flock; scratch grains and treats should not displace a balanced ration. Adjust your shopping estimate to measured use rather than a fixed seasonal multiplier.
Why are “bags to buy” and “feed cost” different?
Feed-use cost spreads the price across the portion consumed. Shopping cost counts whole bags purchased, assuming no feed already in storage. Leftovers carry into the next period.
Research behind the estimate
The adult-layer starting rate and feeding guidance come from extension publications. Bag-life and budget figures are arithmetic using your entries.
Alabama Cooperative ExtensionAdult-layer intake, the 10-hen example and feed management
University of Maryland ExtensionMatching feed to birds, forage limits and storageUniversity of Maryland ExtensionWhy feed cost is only part of a flock’s budgetSources checked September 27, 2026. The bantam default is identified separately above.