Seed Rate Calculator

Seeds/acre = target population / (germination × purity).

Last reviewed: February 2026How we build & verify

Target Population (seeds/acre)

Germination %

Purity %

Seeds per lb

Seeds / acre

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lb / acre

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Frequently Asked Questions

No. Seed Rate Calculator is free and works without creating an account. Open the page and start using it.

We check Seed Rate Calculator periodically to keep it working correctly and to make small improvements based on how people actually use it. The date at the top of the page shows the last review. Found a bug or have a suggestion? There's a feedback button in the bottom-right corner.