This Seed Rate Conversion Calculator allows you to calculate the necessary seed weight per hectare or acre based on the number of plants per square meter or square foot, the lab germination rate, and the seed weight in various units (grams, ounces, seeds per kilogram, or seeds per ounce).

Calculator

1. enter the number of plants per square metre or square foot (select the appropriate unit from the dropdown)
2. the lab germination rate of the seeds as a percentage (0-100)
3. choose the weight type (1000-kernel weight in grams or ounces, seeds per ounce, or seeds per kilogram)
4. enter the seed weight based on the selected weight type

Results

1. the calculated seed weight needed per hectare in kilograms
2. converted to pounds per hectare
3. the seed weight required per acre in kilograms
4. converted to pounds per acre

Seed Calculators