Enter the seed rate and the area in hectares into the calculator to determine the total number of seeds needed for planting.

Seeds Per Hectare Calculator

Pick your crop or enter a custom rate, then your field area.

By Crop
Custom Rate
Please choose a crop.
Enter an area greater than zero.
Seeds per hectare
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Seeds per acre
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Seed weight
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Total seeds (field)
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Total seed weight
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â–¸ How this is calculated
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Seeds Per Hectare Formula

The following formula is used to calculate the total number of seeds needed per hectare. 

TS = SR * A * 10,000

Variables:

  • TS is the total number of seeds
  • SR is the seed rate (seeds per square meter)
  • A is the area in hectares
  • Note: 1 hectare is equal to 10,000 square meters

To calculate the total number of seeds needed per hectare, multiply the seed rate by the area in hectares and then by 10,000 to convert hectares to square meters.

What is Seed Rate?

Seed rate refers to the number of seeds that are sown per unit area. It is an important factor in agriculture for ensuring optimal plant growth and yield. The seed rate can vary depending on the type of crop, the method of planting, and the desired plant density. Calculating the correct seed rate is crucial for efficient use of seeds and resources.

How to Calculate Seeds Per Hectare?

The following steps outline how to calculate the total number of seeds needed per hectare.

  1. First, determine the seed rate (SR) in seeds per square meter.
  2. Next, determine the area to be planted (A) in hectares.
  3. Next, gather the formula from above = TS = SR * A * 10,000.
  4. Finally, calculate the Total Seeds (TS).
  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.

Seed rate (SR) = 100 seeds per square meter

Area (A) = 2 hectares