Seeding Rate Calculator


Use this calculator to decide how much seed you need to plant to obtain the desired plant population and calibrate your seeder.

Germination and mortality are based on seed tests. Good seed will have a germination of 90-95% and seed mortality is approximately 3%, but can vary greatly.


Select crop from list
Select variety from list
Desired plant density (plants/ft2) Enter plant density in the 15 to 50 range.
Germination rate (%) Enter germination rate in the 65 to 100 range.
Emergence mortality (%) Enter emergence mortality rate in the 0 to 50 range.
Row Spacing (inches) Enter row spacing in the 3 to 14 inches range.
1000-Kernel wt. (grams), if known Normally ranges between 25 and 55 grams.
Acres to be planted, if known
Price ($/lb), if known

This information is maintained by Stacey Tames