Calculator
Fertilizer Calculator
How much fertilizer does your garden need?
Frequently Asked Questions
What do the N-P-K numbers mean?
N-P-K stands for Nitrogen-Phosphorus-Potassium. Nitrogen promotes leafy growth. Phosphorus supports roots and flowers. Potassium improves overall plant health and disease resistance. A 10-10-10 fertilizer contains 10%% each of these three nutrients by weight.
About the Fertilizer Calculator
Calculate how much fertilizer to apply to your garden based on area, fertilizer type, and application rate. See total pounds needed with NPK breakdown.