Concentrate Mix (Pearson Square) Calculator
Use the Pearson square to mix two feeds to a target protein percentage.
The Pearson square mixes two feeds to a target protein: parts of A = |target − CP_B|, parts of B = |CP_A − target|. The target must lie between the two feeds' protein levels. It's the quick on-farm way to blend a high-protein feed (e.g. oilcake) with an energy feed (e.g. maize/bran).
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Dairy and livestock farmers use the free Concentrate Mix (Pearson Square) Calculator for an accurate answer in seconds — no formulas to remember, works offline at the farm.
About Concentrate Mix (Pearson Square) Calculator
The Pearson square is the classic, quick method to blend two feeds to a desired protein level — for example mixing a high-protein oilcake with cheap energy grain to hit an 18% crude-protein concentrate. This tool does the square for you: enter the protein percentage of each feed and your target, and it returns the proportion of each to use per 100 kg of mix. The target must sit between the two feeds' protein levels for a valid blend.
How to use Concentrate Mix (Pearson Square) Calculator
- 1Enter your animal/herd figures into the inputs.
- 2Read the headline result and the supporting breakdown.
- 3Apply the guidance in the note to your feeding decisions.
Why use Concentrate Mix (Pearson Square) Calculator?
- ✓Uses the standard, citable dairy-nutrition formula
- ✓Clear inputs with sensible defaults
- ✓Instant result with the working shown
- ✓Free, fully in-browser and private
Frequently asked questions
How does the Pearson square work?+
Put the target protein in the middle; the parts of each feed equal the absolute difference between the target and the other feed's protein. Parts of high-protein feed = |target − low CP|; parts of low = |high CP − target|. Convert the parts to percentages.
What if I need to balance more than two feeds or energy too?+
The two-feed Pearson square handles one nutrient and two ingredients. For multiple ingredients or balancing protein and energy together, use a multi-feed least-cost ration program — but the square is ideal for quick on-farm protein blends.
Is this tool free and private?+
Yes — free, no sign-up, and all calculation runs in your browser, so it works offline at the farm and your data never leaves the device.
Related Agri tools
Tractor Fuel Consumption Calculator
Estimate your tractor's diesel consumption per hour from its horsepower, load and specific fuel consumption.
● LiveTractor Fuel Cost Per Acre Calculator
Convert your tractor's fuel use per hour into diesel litres and cost per acre for any field operation.
● LiveImplement Field Capacity Calculator
Calculate the effective field capacity (ha/h and acres/h) of any implement from width, speed and field efficiency.
● Live