Estimate feed consumption and cost for your laying flock. Enter your hen count to see bags needed and total spend
Period Breakdown
What Is the Layer Chicken Feed Calculator?
Feed is the single largest recurring cost in keeping laying hens, so getting your feed budget right matters whether you have a handful of backyard hens or a small commercial layer flock. This calculator estimates how much layer feed your birds will consume over a day, week or month, how many 50kg bags you will need to buy, and what that feed will cost you in Rand.
Underfeeding reduces egg production and can affect hen health, while overordering ties up cash in feed that may spoil before it is used. This tool helps you order the right amount for your flock size.
How to Use the Layer Chicken Feed Calculator
- Enter the number of laying hens in your flock.
- Enter the average daily feed intake per hen, in grams. A typical laying hen eats between 110g and 125g of layer feed per day, depending on breed, age and egg production rate.
- Enter the number of days you want to plan for, such as 7 for a week or 30 for a month.
- Enter the price per 50kg bag of layer feed, if you want a cost estimate as well as a quantity estimate.
- Click Calculate to see your total feed requirement in kilograms, the number of 50kg bags needed, and the estimated total cost.
The Feed Requirement Formula
The calculator builds up your total feed need from a simple daily intake figure.
Total feed required: Total Feed (kg) = Number of Hens × Daily Intake per Hen (kg) × Number of Days
Bags required: Bags Needed = Total Feed (kg) ÷ 50
Estimated cost: Estimated Cost = Bags Needed × Price per Bag
Since bags are sold as whole units, the number of bags needed should generally be rounded up to the next whole bag, since suppliers do not sell partial bags.
Worked Example: Feed Budget for a Small Flock
Suppose a smallholder keeps 50 laying hens and wants to budget for a full month of feed, using an average daily intake of 120g per hen and a bag price of R260 for a 50kg bag of layer mash.
Step 1: Calculate total feed required
Total Feed = 50 hens × 0.12 kg × 30 days Total Feed = 50 × 0.12 × 30 = 180 kg
Step 2: Calculate bags needed
Bags Needed = 180 kg ÷ 50 kg = 3.6 bags, rounded up to 4 bags
Step 3: Calculate estimated cost
Estimated Cost = 4 bags × R260 = R1,040 for the month
This works out to roughly R20.80 per hen per month on feed alone, before accounting for supplements, grit, or any additional treats. Tracking this figure over several months helps a smallholder spot whether feed costs are rising and whether egg income is comfortably covering the input cost.
Why Daily Intake Varies
The 110g to 125g daily intake range used in this calculator is an average, and several factors push individual flocks above or below it:
- Breed and body size. Larger breeds and heavier hybrid layers generally eat more per day than smaller, lighter breeds.
- Age and production stage. Hens in peak lay, typically between 25 and 60 weeks of age, tend to eat more consistently than younger pullets just coming into lay or older hens past peak production.
- Temperature. Hens eat less in hot weather and more in cold weather, since feed intake is partly driven by the energy needed to maintain body temperature.
- Feed form. Pelleted feed is generally eaten slightly more efficiently with less wastage than loose mash, which can affect how much feed disappears from the feeder even if actual consumption is similar.
If you notice your flock consistently eating meaningfully more or less than the 110g to 125g range, it is worth weighing feed put out against feed remaining over a few days to establish your flock’s actual average, rather than relying on the general figure.
Typical Layer Feed Prices in South Africa
Layer mash and layer pellets are generally sold in 50kg bags, with prices varying by brand, region and whether you buy from a feed mill directly or a retail outlet. Current typical pricing for a standard 50kg bag of layer feed in South Africa generally falls between R220 and R320, with bulk or direct-from-mill purchases often priced toward the lower end of this range and retail bagged products toward the higher end.
Buying in bulk, either as a larger bag size where available or through a co-operative or group purchase with other small scale keepers, can reduce your cost per kilogram meaningfully compared to buying single bags at retail price.
Feed Requirements Beyond Layer Mash
Layer feed alone should make up the bulk of a laying hen’s diet, but a few additional inputs are worth budgeting for separately:
- Oyster shell or limestone grit supports eggshell strength, particularly important as hens age and their natural calcium absorption becomes less efficient.
- Clean water should always be available, since reduced water intake directly reduces feed intake and egg production.
- Kitchen scraps and treats should be limited to a small proportion of the diet, since overfeeding treats can dilute the balanced nutrition provided by a proper layer ration and reduce egg production.
Tips for Managing Feed Costs
- Reduce feed wastage. Using proper feeders rather than scattering feed on the ground, and adjusting feeder height as hens grow, can meaningfully reduce the amount of feed lost to spillage.
- Buy feed in bulk when storage allows. Larger orders often carry a lower price per kilogram, provided you have dry, pest free storage to keep the feed from spoiling before use.
- Monitor egg production against feed cost. Tracking your feed conversion, the amount of feed used per dozen eggs produced, helps identify whether your flock’s productivity justifies its feed cost or whether older, less productive hens should be culled.
- Store feed correctly. Keep bags off the ground, in a dry, rodent proof area, since moisture and pest damage both increase effective feed cost by wasting purchased stock.