CloudPoultry

Broiler FCR Calculator

Feed Conversion Ratio (FCR) = total feed consumed (kg) ÷ total live weight gain (kg). An FCR of 1.6 means the flock ate 1.6 kg of feed for every 1 kg of live weight it produced. Commercial broiler flocks typically land between 1.5 and 1.9 — lower is better.

Enter feed and weight gain to calculate FCR

How the calculation works

FCR divides everything the batch ate by everything it grew: FCR = feed (kg) ÷ weight gain (kg). Weight gain is total live weight at harvest minus the starting chick weight. Track feed batch-wise — mixing batches hides which shed or breed is underperforming.

What moves FCR

Feed quality and formulation, breed, harvest age (FCR worsens as birds get older), climate stress, disease and feed wastage. Comparing your actual FCR against the breed's standard FCR for the same age is the fastest way to spot a problem batch — CloudPoultry tracks actual vs standard FCR per batch automatically.

Methodology

This calculator uses the same formula as CloudPoultry's broiler flock records module: FCR = total feed in kg ÷ total live weight in kg, rounded to 2 decimals. Typical ranges cited are for commercial fast-growing broiler breeds; consult your breed management guide for exact standards.

Also try the Feed per Egg calculator and the Hen-Day Production % calculator, or see how CloudPoultry tracks FCR automatically.