Germination Rate Calculator

Adjust sowing quantity before using old seed or seed with uncertain storage history.

Results change if test conditions differ from the growing setup. Very low rates may justify fresh seed instead of dense sowing.

Seeds tested Seeds sprouted Target seedlings Extra buffer (%)

GUIDE

How to use it

Calculate germination rate, adjusted sowing count, and expected viable seedlings.

The calculation is a starting point. Check drainage, soil condition, plant condition, and season together.

Is the result exact?

It is a reference based on simple presets and volume formulas. Adjust to the real growing conditions.

Is data sent to the server?

No. Calculations run in the browser only.