Enter the kernels per spike and the spikes per 3 ft of row into the Calculator. The calculator will evaluate the Wheat Yield. 

Wheat Yield Formula

WY = (KPS * SP3) *.0319


  • WY is the Wheat Yield (bu/acre`)
  • KPS is the kernels per spike
  • SP3 is the spikes per 3 ft of row

To calculate Wheat Yield, multiply the kernels per spike by the spike by 3-foot row, then multiply the result by .0319.

How to Calculate Wheat Yield?

The following steps outline how to calculate the Wheat Yield.

  1. First, determine the kernels per spike. 
  2. Next, determine the spikes per 3 ft of row. 
  3. Next, gather the formula from above = WY = (KPS * SP3) *.0319.
  4. Finally, calculate the Wheat Yield.
  5. 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.

kernels per spike = 34

spikes per 3 ft of row = 10


What factors can affect wheat yield aside from kernels per spike and spikes per row?

Several factors can impact wheat yield, including soil fertility, irrigation, weather conditions, pest and disease management, and the choice of wheat variety. Proper management of these factors is crucial for optimizing yield.

How does the choice of wheat variety influence yield?

The choice of wheat variety can significantly influence yield as different varieties have varying levels of resistance to pests and diseases, drought tolerance, and adaptability to different soil types. Selecting a variety that is well-suited to the local growing conditions is essential.

Can the wheat yield calculator be used for precision agriculture?

Yes, the wheat yield calculator can be a valuable tool in precision agriculture for making informed decisions about planting, fertilization, and irrigation by providing estimates of yield based on specific input variables. However, it should be used in conjunction with other data and technology for best results.

Is it possible to improve wheat yield accuracy using technology?

Yes, the accuracy of wheat yield predictions can be improved with the use of technology such as satellite imagery, drones, and sensors that monitor soil moisture and nutrients. These technologies can provide real-time data that helps in making more accurate and timely decisions to optimize wheat production.