Feed Conversion Ratio Calculator

The Feed Conversion Ratio (FCR) measures how efficiently feed is converted into body weight or milk production. Lower values indicate more efficient feed conversion. This calculator helps determine the FCR by comparing feed intake to weight gain or milk production.

Input Parameters

Calculation Results

Feed Conversion Ratio (FCR)

--

Calculation Formula

FCR = Feed Intake (kg/day) / Weight Gain (kg/day)

Where:
- Feed Intake: Amount of feed consumed per day
- Weight Gain: Weight gained per day
- FCR: Feed Conversion Ratio (lower is more efficient)

Interpretation

  • FCR < 2.5: Excellent feed conversion
  • FCR 2.5-3.5: Good feed conversion
  • FCR 3.5-4.5: Fair feed conversion
  • FCR > 4.5: Poor feed conversion (consider improving)

Feed Conversion Ratio Calculator Usage Guide

Learn how to use the Feed Conversion Ratio Calculator to evaluate feed efficiency in livestock production

How to Use This Calculator

  1. Enter the daily feed intake in kilograms (kg/day)
  2. Enter the total weight gain in kilograms (kg) over the measurement period
  3. Enter the duration of the measurement period in days (default is 1 day)
  4. Click the "Calculate" button to compute the Feed Conversion Ratio
  5. Review the results and interpretation guide to evaluate feed efficiency

What is Feed Conversion Ratio (FCR)?

The Feed Conversion Ratio (FCR) is a measure of how efficiently feed is converted into body weight or milk production. It is calculated by dividing the amount of feed consumed by the amount of weight gained over a specific period.

For example, if a cow consumes 25 kg of feed per day and gains 5 kg of body weight over a 30-day period, the FCR would be:

FCR = 25 kg/day ÷ (5 kg ÷ 30 days) = 25 ÷ 0.1667 = 150

A lower FCR indicates more efficient feed utilization, meaning the animal is converting feed into body weight more effectively. This is an important metric for farmers and producers to monitor as it directly impacts feed costs and profitability.

When to Use This Calculator

  • When evaluating feed efficiency of livestock (cattle, pigs, poultry, etc.)
  • When comparing different feed formulations or brands
  • When assessing animal health and production performance
  • When making informed decisions about feed rations and management practices