FullCalculator

Fertilizer Rate Calculator

Fertilizer Rate

Calculate fertilizer needed for your lawn area.

Formula

Product (lbs) = (Area / 1000) x Application Rate / (N% / 100)

Frequently Asked Questions

How often should I fertilize my lawn?
Most lawns benefit from fertilizing 3 to 4 times per year.
What does the N-P-K ratio mean?
N is nitrogen, P is phosphorus, K is potassium on the bag label.