Aquaculture Feed Conversion Calculator

FCR optimization from feeding data.

Feed used (kg)

Weight gain (kg)

Feed cost ($/kg)

Fish price ($/kg)

Tab to move between fields

FCR (feed:gain)

1.67

Feed cost/kg fish ($)$2.00

Feed cost % of revenue44.44

Protein efficiency ratio2

Economic FCR0.44

How to Use This Calculator

Enter Feed used (kg), Weight gain (kg), and Feed cost ($/kg).
Set Fish price ($/kg).
Review the FCR (feed:gain) result.
Use Feed cost/kg fish ($) ($) and Feed cost % of revenue to inform your decision.

How the result changes with Weight gain (kg)

FCR (feed:gain): Feed conversion ratio (kg feed per kg gain; lower is better).
Feed cost/kg fish ($): Feed cost to produce one kg of fish.
Feed cost % of revenue: Feed cost as percentage of fish revenue.
Protein efficiency ratio: Weight gain per unit of protein fed.
Economic FCR: Ratio of feed cost to fish value (< 1 = profitable).

Identify Input Parameters
4 parameters
Feed used (kg) = 500, Weight gain (kg) = 300, Feed cost ($/kg) = 1.2, Fish price ($/kg) = 4.5 = 4 input(s) provided
Calculate FCR
FCR = round((feedUsedKg / weightGainKg) * 1000) / 1000
1.667 = 1.667
Calculate Feed cost/kg fish
Feed cost/kg fish = round(fcr * feedCostPerKg * 100) / 100
2 = $2
Calculate Feed cost % of revenue
Feed cost % of revenue = round((feedCostPerKgFish / fishPricePerKg) * 10000) / 100
44.44 = 44.44