Soybean Yield Calculator
Measure 17.4 linear feet of row (1/1,000th acre at 30" spacing). Count plants and pods in that section.
How the pod count method works
Soybean yield estimation uses plants per measured row length, pods per plant, and seeds per pod to project bushels per acre. The calculator uses a 1/1,000-acre row sample based on your row spacing — same concept as corn, different components.
Walk the indicated row length, count plants per foot, then estimate average pods per plant and seeds per pod on representative plants. Default seeds per pod is 2.5; large-seeded varieties may run lower.
Sample at least three locations per field — hilltops, mid-slope, and low ground — and average your counts. One good-looking strip along the road is not a field estimate.
When to use this calculator
R6 growth stage (full seed) gives the best accuracy. Pods and seed size are near final. Earlier estimates at R4–R5 are possible for rough planning but count less reliably.
Once you have a yield estimate, run it through the crop breakeven calculator alongside your input costs to see your margin.
If you are deciding whether to store or sell at harvest, see our store vs sell grain guide.
Row spacing and sample length
| Row spacing | Feet of row (1/1,000 acre) |
|---|---|
| 30 inches | 17.4 ft |
| 15 inches | 34.8 ft |
| 7.5 inches | 69.6 ft |
The calculator selects sample length automatically when you choose row spacing.
Soybean Yield Calculator FAQ
When should I estimate soybean yield?
R6 (full seed) is best. Earlier stages are less reliable.
How accurate is the pod count method?
Extension sources cite ±15% typical accuracy at R6 with good sampling.
What is a typical pods per plant count?
Often 30–45 pods per plant at R6 in the Midwest, varying by stand density and year.
How does row spacing affect my soybean yield estimate?
Row spacing changes sample length for 1/1,000 acre — select your actual spacing in the calculator.