Feed Conversion Ratio Calculator
Enter total feed consumed and weight gained to calculate the feed conversion ratio, a standard measure of livestock feed efficiency. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example
Feed Conversion Ratio Calculator
Sample: 180 lbs feed, 60 lbs weight gain
Example shown — replace it with your own feed and weight gain numbers.
Feed consumed
180 lbs
Weight gain
60 lbs
Result
How it works
- Enter total feed consumed.
- Enter total weight gained over the same period.
- Get the feed conversion ratio.
The method
FCR is calculated as feed consumed divided by weight gained, the standard measure used to compare feed efficiency across animals or batches.
FAQ
What does a lower FCR mean?
A lower feed conversion ratio means an animal gained more weight per unit of feed consumed, generally indicating better feed efficiency and lower feed costs per pound of gain.
What is a typical FCR range?
Typical ranges vary widely by species and production system — poultry often run lower (more efficient) than cattle, so compare FCR within the same species and system for a fair benchmark.
Does this account for feed cost, not just quantity?
No — this calculates the efficiency ratio from weight of feed to weight gained; multiply by your feed's cost per pound separately to get cost per pound of gain.
How we compare
| Feature | Online Tool Store | Manual division by hand | Livestock management software |
|---|---|---|---|
| No software install | Yes | Yes | No |
| Quick to start | Yes | Slow | Setup required |
| Free to use | Yes | Free | Often paid |
For a quick efficiency check without opening farm management software, this gets you the ratio instantly.