Fertilizer List

Add your own products with their guaranteed analysis. They'll appear in the calculator's ingredient dropdown under "My Fertilizers".

Community Library

Pull in a product someone's already added, no need to retype the analysis. Always confirm the N-P-K and other nutrients match your product's label before using it, since community entries can vary.

New Fertilizer

We read the Guaranteed Analysis and fill in what we can, then you check it. An uploaded file stays on your device.
N‑Phosphate(P₂O₅)‑Potash(K₂O)
ammoniacal (NH₄)
urea
nitrate (auto)
Straight from the label: enter the ammoniacal- and urea-N % (e.g. 3 ammoniacal on a 15-N feed); nitrate fills in as the rest of total N.
Grams per mL. Weigh 100 mL and divide by 100, or use the specific gravity on the SDS. The calculator then gives this product in mL.

Other nutrients - percent by weight (leave 0 if none)

Turn this on to use the product in the Foliar Spray Calculator.

Saved Products

Saved fertilizers

Name N-P-K NH₄ % Urea % MgCaSBCuFe MnMoZnSiClNa