Egg cost per dozen calculator
What does a dozen eggs cost me to produce?
Showing for United States
Cost per dozen
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- Dozens laid in the period
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- Total cost for the period
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- Feed cost per dozen
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- Your time, at your wage
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- Profit per dozen at your price (negative is a loss)
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- Eggs at your price, for the period
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- Profit for the period (negative is a loss)
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The lay rate is the share of your hens that lays on an average day across the whole period, so it already takes in days off lay and hens that die. Your own egg records are the best source.
Rules for selling eggs, such as grading, labeling and keeping them cold, depend on where you sell. This calculator works out costs only.
Cost per dozen
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- Feed cost per dozen
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- Profit per dozen at your price (negative is a loss)
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This counts feed and any other cost per dozen you enter. Birds, housing and your time are only in the flock mode.
Rules for selling eggs, such as grading, labeling and keeping them cold, depend on where you sell. This calculator works out costs only.
Enter your numbers to see the result.
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Use this calculator in an AI chat
You can ask Claude, ChatGPT or another AI app to work this out for you, and this calculator opens right inside the chat. You connect TallyTill to your AI app once. It is free, and there is no account and no sign-in.
AI apps call add-ons like this connectors, apps or MCP servers. They all mean the same thing: a way for the AI to use a tool someone else made.
1. Copy this address
2. Add it to your AI app
Claude (claude.ai and the Claude desktop app)
- Open Customize, then Connectors.
- Press + Add, then Add custom connector.
- Name it TallyTill calculators, paste the address and press Continue.
- Under Authentication choose No sign in, then press Add.
- In a new chat, press + at the bottom left, choose Connectors and switch TallyTill calculators on.
On Claude's free plan you can add one custom connector.
ChatGPT
- In Settings, turn on Developer mode. OpenAI moves this switch from time to time; it is usually with the settings for apps and connectors.
- Add a new connector (ChatGPT may call it an app), paste the address and choose No authentication.
- In a new chat, choose TallyTill from the tools menu, or type @ and pick it.
Not every ChatGPT plan lets you add your own connector. If you cannot find the option, your plan may not include it.
Using another AI app? Look in its settings for MCP, add the address as a remote server, and choose no sign-in.
3. Ask your question
Say "use TallyTill", so the AI uses the calculator instead of doing the sum itself. For example:
"Use TallyTill: What does a dozen eggs cost me to produce?"
What you will see
- The calculator opens in the chat with the numbers you gave already filled in. Change any number and the answer updates.
- If a number is missing, the box is highlighted, or the AI asks you for it in plain words.
- The answer links back to this page, so you can check the working.
- The first time, your AI app asks if it may use TallyTill. Choose Allow.
The calculators take numbers only. They never ask for your name, your email or a password.
How this is worked out
The cost of a dozen eggs is everything the flock cost you over a period divided by the dozens it laid in that period. The dozens are the hens times the laying days times the lay rate (the share of hens that lays on an average day, as a percent ÷ 100), divided by 12. The costs are the feed, the chicks or pullets, the share of housing and equipment you put on this period, bedding, cartons, electricity and anything else, plus your own hours times your hourly wage if you enter both. Each figure is rounded to the cent once, where it is shown. Your profit per dozen is your price less that rounded cost per dozen. The quick mode multiplies the feed a dozen eggs takes by the feed price per pound or kilogram, then adds any other cost per dozen you enter.
A worked example
Example numbers only; use your own. University of Maryland Extension's budget for 10 hens over 895 laying days at a 70 percent lay rate gives 10 × 895 × 0.70 ÷ 12 = 522.08 dozen. Its costs come to 1,759.00: 754.00 of feed, 60.00 for chicks, 675.00 for housing and equipment and 270.00 for bedding, cartons and electricity. So a dozen costs 1,759.00 ÷ 522.08 = 3.37, of which feed is 1.44. Sold at 6.00 a dozen, that is 2.63 a dozen, or 1,373.50 over the period. In the quick mode, 4.5 lb of feed per dozen at 0.30 a pound is 1.35 a dozen.
Nothing you type here is saved.