Feed Conversion Ratio (FCR) is the single most critical biological efficiency metric in commercial poultry farming. It measures how many kilograms of feed are required to produce one kilogram of live bird weight. A lower FCR indicates superior feed conversion and lower production cost.
Flock Inputs & Parameters
Calculates automatically
kg
e.g. 163.2 bags of 50 kg = 8,160 kg
kg
Live bird scale weight at mandi clearance
birds
kg
kg
Leave 0 for standard commercial FCR, or enter total weight of DOC chicks (~40g/chick).
Feed Conversion Ratio
1.70
Standard Commercial FCR (1.70)
Feed Per kg Live Meat
1.70 kg feed
To produce 1 kg live chicken
Feed Consumed Per Bird
3.40 kg/bird
Cumulative flock average
Total Live Weight
4,800 kg
Total marketable meat
Performance Benchmark
Commercial Target
Pakistan standard: 1.65–1.75
How This Calculator Works
The FCR Calculator (Feed Conversion Ratio) applies standard avian zootechnical mathematics calibrated specifically for Pakistani poultry production norms. Whether modeling 35-day Cobb 500 broilers in Punjab or commercial brown layers in KPK, the engine accounts for feed intake curves, bird mortality, utility overheads, and prevailing mandi price mechanics.
📐Feed Conversion Ratio (FCR) Formula
FCR = Total Feed Consumed (kg) ÷ Total Live Weight Produced (kg)
Net Weight Gain (kg) = Final Live Weight (kg) − Initial Day-Old Chick Weight (kg)
Adjusted FCR = Total Feed Consumed (kg) ÷ Net Weight Gain (kg)
Feed Per Bird (kg) = Total Feed Consumed (kg) ÷ Surviving Birds
Feed Required Per kg Meat = FCR (e.g., 1.70 kg feed per 1 kg live chicken)
Worked Example: Step-by-Step Practical Calculation
Scenario: A shed of 2,500 broilers finishes its 35-day grow-out cycle with 2,400 surviving birds, weighing 4,800 kg total, after consuming 8,160 kg of feed.
Starting Assumptions:
Chicks Placed: 2,500
Surviving Birds: 2,400 (4% mortality)
Average Live Weight: 2.00 kg per bird
Total Live Weight: 4,800 kg
Total Feed Consumed: 8,160 kg (163.2 bags of 50 kg)
Calculation Steps:
Step 1 — Calculate FCR: 8,160 kg ÷ 4,800 kg = 1.70
Step 2 — Feed Per Bird: 8,160 kg ÷ 2,400 birds = 3.40 kg per bird
Step 3 — Interpretation: FCR 1.70 means every 1.70 kg of feed produced 1.00 kg of live broiler
Step 4 — Benchmark Rating: Excellent (Commercial target for Pakistan is 1.65–1.75 at 2.0 kg)
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Frequently Asked Questions
Common questions about FCR Calculator (Feed Conversion Ratio)
For commercial white broilers harvested at 2.0 kg live weight, an FCR of 1.55 to 1.65 is exceptional (typically in environmentally controlled sheds), 1.66 to 1.75 is standard commercial efficiency, and 1.80 or higher indicates feed wastage, disease challenge, or heat stress.
As birds grow larger, a higher percentage of consumed nutrients goes toward bodily maintenance (breathing, body heat, organ function) rather than muscle synthesis. In week 1, FCR is below 1.0; by week 5, marginal FCR exceeds 2.1.
Key strategies to improve FCR include: (1) eliminating feeder spillage with correctly adjusted pan heights, (2) maintaining optimal shed temperatures (cooling in summer, proper brooding in winter), (3) ensuring clean drinking water with regular line flushing, and (4) controlling subclinical coccidiosis and enteritis.
Yes. If dead birds consumed feed before dying, their consumed feed is included in total feed, inflating the flock FCR. In commercial practice, farmers also calculate an Mortality-Corrected FCR to separate nutritional efficiency from health mortality.
For a 10,000-bird flock harvested at 2.0 kg (20,000 kg live weight), reducing FCR by 0.05 saves 1,000 kg of feed. At Rs. 165/kg, that directly saves Rs. 165,000 in operational costs per batch.
Poultry Farming Estimation Notice:
These calculations are estimates provided for informational and planning purposes. Actual poultry farming costs, feed performance, Feed Conversion Ratios (FCR), mortality, mandi market prices, and net profitability vary depending on farm shed ventilation, bird genetics, feed quality, seasonal temperatures, management practices, and local market conditions across Pakistan. Always verify binding commercial transactions with registered wholesale mandi dealers or local District Market Committees.
Data Notice & Disclaimer:
Rates may vary by market, supplier, location, timing and transaction type. The website presents collected market-rate information for informational purposes and does not guarantee a particular buying or selling price. Check local district market committees or registered wholesale mandi dealers for binding transactional terms.