Egg Production Estimator
Calculate your flock's annual egg yield, cost per egg, and compare to store prices. Adjust for breed, hen age, and seasonal changes.
Enter Your Flock Details
Your Egg Production Results
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Eggs Per Year
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Eggs Per Week
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Feed Cost Per Year
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Cost Per Egg
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Store Equivalent Cost
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Annual Savings
How It Works
Egg production varies significantly based on the hen's breed, age, and the season. This calculator uses standard production rates and adjusts them based on these factors.
Production Rates by Age
Hen egg production follows a predictable pattern as they age:
- 5-6 months: 20% of peak production (hens just starting to lay)
- 6-8 months: 60% of peak production (ramping up)
- 8-18 months: 100% of peak production (prime laying years)
- 18-24 months: 90% of peak production (slight decline begins)
- 24-36 months: 75% of peak production (noticeable decline)
- 36+ months: 50% of peak production (significant decline, but still laying)
Seasonal Variation
Egg production is influenced by daylight hours. Hens need 14-16 hours of light to maintain peak production:
- Spring: 100% production (increasing daylight)
- Summer: 95% production (peak heat can reduce laying)
- Fall: 85% production (decreasing daylight)
- Winter: 70% production (shortest daylight hours)
Eggs per hen per year = Base breed rate × Age multiplier × Season multiplier
Age multipliers:
5-6 months: 0.20
6-8 months: 0.60
8-18 months: 1.00
18-24 months: 0.90
24-36 months: 0.75
36+ months: 0.50
Season multipliers:
Spring: 1.00
Summer: 0.95
Fall: 0.85
Winter: 0.70
Total annual eggs = Eggs per hen per year × Number of hens
Feed cost per year = (hens × feed per day × 365 / 50) × feed cost per bag
Cost per egg = Feed cost per year / Total annual eggs
Store equivalent = (Annual eggs / 12) × Store price per dozen
Annual savings = Store equivalent - Feed cost per year
Breed Egg Colors
Different breeds lay different colored eggs. This doesn't affect nutrition or taste, but can be fun for variety:
- White Leghorn: White eggs
- Rhode Island Red: Brown eggs
- Plymouth Rock: Brown eggs
- Orpington: Light brown / tinted eggs
- Easter Egger: Blue, green, or olive eggs
- Australorp: Brown eggs
- Wyandotte: Brown eggs
- Sussex: Light brown / tinted eggs