Operation Type
Cattle Feeding Analysis
Enter cattle and feed data, then calculate.
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What This Calculator Does
This cattle weight gain and feed conversion calculator helps ranchers, feedlot operators, and livestock buyers project feeding period performance and profitability. It calculates average daily gain (ADG), feed conversion ratio (FCR), days on feed, total feed consumption, cost of gain per pound, breakeven selling price, and profit or loss per head. The tool supports stocker/backgrounder and feedlot finishing operations with 2026 feed prices and cattle market data.
The Formula
Average daily gain (ADG) determines how many days the animal needs to reach target weight. Total feed consumed is calculated from average body weight (midpoint of start and target) multiplied by daily intake as a percentage of body weight, multiplied by days on feed. Feed conversion ratio (FCR) measures pounds of feed required per pound of gain (lower is better; 6:1 is good for stockers, 5.5:1 for feedlot). Cost of gain includes feed, yardage (facility and labor), and health costs divided by total pounds gained. Breakeven is the total investment (purchase + feeding costs) divided by sale weight.
Step-by-Step Example
Enter cattle data
Stocker operation. 50 head at 550 lbs purchase weight, target 850 lbs. Purchase price: $1.85/lb.
Set feed parameters
Expected ADG: 2.5 lbs/day. Feed cost: $280/ton. Intake: 2.5% of body weight. Yardage: $0.50/hd/day.
Calculate performance
Total gain: 300 lbs. Days on feed: 120. Feed per head: 2,625 lbs. FCR: 8.75:1.
Review profitability
Feed cost/head: $367.50. Total cost/head: $1,450. Breakeven: $1.71/lb. At $1.70/lb sale: -$4.25/head loss.
Real-World Use Cases
Stocker Purchase Decisions
Before buying calves, project the cost of gain and breakeven selling price to determine maximum purchase price at which the operation will be profitable.
Feedlot Closeout Projections
Track actual performance against projections to identify cattle that are performing above or below expectations and adjust marketing timing.
Feed Ration Comparison
Compare the cost of gain between different feed rations (e.g., corn silage vs. distillers grains) to optimize feed cost per pound of gain.
Common Mistakes to Avoid
Using unrealistic ADG expectations. Stocker cattle on grass plus supplement typically gain 2.0 to 2.5 lbs/day. Feedlot cattle on finishing ration gain 3.0 to 4.0 lbs/day. Overestimating ADG leads to longer feeding periods and higher costs than projected.
Not accounting for the price slide. Heavier cattle sell for less per pound than lighter cattle. A 550 lb calf at $1.85/lb becomes an 850 lb feeder at $1.65 to $1.75/lb. The "value of gain" decreases as weight increases.
Ignoring death loss and morbidity costs. Industry average death loss is 1% to 2% for stockers and 1% for feedlot. Sick cattle have reduced ADG and increased treatment costs. Budget $15 to $30 per head for health costs.
Forgetting interest on cattle investment. The purchase cost of cattle ties up capital for the entire feeding period. At 7% to 8% interest, carrying 50 head at $1,018/head for 120 days costs approximately $1,400 in interest.
Frequently Asked Questions
Accuracy and Disclaimer
Performance projections are estimates based on the inputs provided. Actual cattle performance depends on genetics, health status, weather, feed quality, management, and many other factors. Cattle markets are volatile and prices can change significantly during the feeding period. This tool is for planning purposes only. Consult your livestock marketing advisor, extension beef specialist, or feed nutritionist for operation-specific recommendations.
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