Tool
Chicken Feed Calculator
Estimate how much feed your flock will eat over days, weeks, or a month, with optional bag count and cost.
- Reviewed
- Sources
- 3 sources
- Level
- beginner
At a glance
- Layer hen
- 0.25 lb/day
- Waste buffer
- 10%
- Storage
- Dry + sealed
A useful average for standard laying hens.
Built into calculator totals.
Moist feed spoils and attracts pests.
Feed Estimate Assumptions
Use the age/type closest to your flock. Mixed flocks are averaged conservatively.
| Item | Practical rule | Note |
|---|---|---|
| Chicks, 0-8 weeks | About 35 g per bird per day | Starter feed stage; intake rises quickly. |
| Growers, 8-18 weeks | About 75 g per bird per day | Use grower or developer ration as appropriate. |
| Laying hens | About 115 g per bird per day | Roughly 0.25 lb per hen per day. |
| Meat birds | About 150 g per bird per day | Actual intake varies widely by strain and age. |
How This Tool Estimates Results #
The calculator multiplies bird count by daily intake, multiplies by your chosen time period, adds a 10% waste margin, then converts the result into pounds, kilograms, bags, and optional cost.
It assumes commercial feed is the main diet. It does not subtract pasture, kitchen scraps, or seasonal forage because those are highly variable and can dilute nutrition if overused.
Before You Buy Feed
- OK Match feed type to bird age and purpose.
- OK Check the mill or best-by date before buying multiple bags.
- OK Store feed in a dry, sealed, rodent-resistant container.
- OK Buy only what the flock can use while the feed is still fresh.
- OK Keep clean water available; feed intake and water intake are linked.
Example Results #
Six laying hens for 30 days need about 23 lb of feed with waste included, so one 50-lb bag is enough with leftovers.
Ten meat birds for 8 weeks may need about 185 lb, or roughly four 50-lb bags, depending on strain, age, and feeding program.
Common Mistakes #
- Forgetting feeder waste and rodent losses.
- Buying more feed than you can store dry.
- Feeding layer ration to chicks or grower birds that do not need high calcium.
- Replacing complete feed with scraps because the birds enjoy them.
FAQ
Why is there a waste factor?
Even careful setups lose some feed to dust, spillage, weather, and pests. The 10% buffer keeps the estimate more realistic.
Do free-range chickens eat less commercial feed?
Often yes in seasons with good forage, but they should still have a balanced feed available.
How long can I store feed?
Keep feed dry, cool, sealed, and protected from rodents. Avoid buying so much that it sits for months and loses quality.
References
Sources used
3 visible sources
Feed intake varies with age, breed, energy density, temperature, waste, and forage. The tool gives practical estimates, not ration formulation.
- Feeding Chickens for Egg Production in Small and Backyard Flocks
Poultry Extension
Explains complete feed, supplements, feeder setup, and storage.
- Basic Poultry Nutrition
Poultry Extension
Provides nutrition fundamentals, including water and feed requirements.
- Nutritional Requirements of Poultry
Merck Veterinary Manual
Veterinary reference for nutrient needs and poultry diet context.
Reviewed by Editorial Team
Backyard Flock & Garden publishes practical, source-backed guidance for backyard chicken keepers and gardeners. See our editorial guidelines.
Last reviewed .
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