Fertilizer Calculator

Calculate how much fertilizer to apply based on N-P-K ratio.

Lawn Area (sq ft)

N Rate (lbs/1000sqft)

N-P-K:--

Fertilizer Needed

5.0 lbs

Applying: 1.00 lbs N, 0.50 lbs P, 0.50 lbs K

About Fertilizer Calculator

This is a free, fast, and fully client-side fertilizer calculator tool. All processing is done locally within your browser to ensure maximum privacy and security. No data is sent to our servers. Bookmark this page for quick access to ad-free, high-performance SEO and developer utilities.