Estimate corn yield, calculate bushels per acre, or convert harvested amounts and yields. Select the task explicitly. Grain mass conversions use standard marketing pounds per bushel, not measured test weight. Corn estimates use sample ears and kernels with an assumed kernel weight; they are not measured harvest yields.

Estimate corn yield from a representative single-row sample at milk stage (R3) or later. Repeat across the field. Default 30-inch spacing and 90,000 kernels/bushel are assumptions to check.

For varying ears, use the kernels-per-ear mode with the average of each ear’s total.

Editable assumption for a 56-lb corn bushel at 15% moisture. Kernel size varies; 90,000 is the legacy default, not a measured constant.

Measured sample length

Blank uses 1/1,000 acre: 522.72 ÷ row spacing in inches, in feet (17.424 ft for 30-inch rows).

Bushels Per Acre Formula

The following formula is used to calculate the bushels per acre.

BPA = Y / (BW × A)

Variables:

  • BPA is the bushels per acre
  • Y is the total yield in pounds
  • BW is the bushel weight in pounds per bushel
  • A is the area in acres

To calculate the bushels per acre, divide the total yield in pounds by the product of the bushel weight and the area in acres.

What is Bushels Per Acre?

Bushels per acre is a unit of measurement commonly used in agriculture to express crop yield. It represents the number of bushels of a particular crop that can be produced on one acre of land. This measurement is crucial for farmers to understand the productivity of their fields and to make informed decisions about crop management and marketing.

How to Calculate Bushels Per Acre?

For the pounds-based formula below, select Convert harvest total, choose Pounds, enter the harvest mass and standard bushel weight, and enter the harvested area in the optional area section. The results include bushels per acre.

  1. First, determine the total yield (Y) in pounds.
  2. Next, determine the area (A) in acres.
  3. Next, determine the bushel weight (BW) in pounds per bushel.
  4. Next, gather the formula from above = BPA = Y / (BW * A).
  5. Finally, calculate the Bushels Per Acre (BPA).
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total yield (Y) = 20000 pounds

area (A) = 10 acres

bushel weight (BW) = 60 pounds per bushel. The yield is 20,000 ÷ (60 × 10) ≈ 33.3333 bushels per acre.