Grain Test Weight Calculator

Formula

To calculate the Grain Test Weight (GTW):

\[ GTW = \frac{100 - D}{100 - W} \cdot TW \]

Where:

\(GTW\) is the Grain Test Weight (lbs/bu)
\(D\) is the Dry Moisture Content (%)
\(W\) is the Wet Moisture Content (%)
\(TW\) is the Test Weight at Wet Moisture Content (lbs/bu)

What is Grain Test Weight?

Grain Test Weight (GTW) is a measure of the density of grain, expressed in pounds per bushel (lbs/bu). It is used to evaluate the quality and marketability of the grain. The GTW is adjusted for moisture content to provide an accurate representation of the grain's weight under standard conditions.

Example Calculation

Let's assume the following values:

Dry Moisture Content (\(D\)) = 12%
Wet Moisture Content (\(W\)) = 15%
Test Weight at Wet Moisture Content (\(TW\)) = 56 lbs/bu

Using the formula:

\[ GTW = \frac{100 - 12}{100 - 15} \cdot 56 = \frac{88}{85} \cdot 56 \approx 58.02 \text{ lbs/bu} \]

The Grain Test Weight is approximately 58.02 lbs/bu.