What this calculator does
Corn yield estimator works out estimated corn yield in bushels per acre using the ear-count yield component method. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
The inputs explained
| Field | What to enter |
|---|---|
| Ears counted in a 1/1000-acre sample row | A number. Starts at 28. |
| Average kernels per ear | A number. Starts at 500. |
| Kernel size factor | Choose from Small (120,000 kernels/bu), Medium (90,000 kernels/bu, typical), Large (80,000 kernels/bu). |
| Field size (0 to skip total) (acres) | A number, measured in acres. Starts at 0. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with ears counted in a 1/1000-acre sample row
Every other input is held at the calculator’s starting values while ears counted in a 1/1000-acre sample row varies. Select any row to load that scenario into the calculator.