AgriConverter category
Fertilizer calculators and tables
Convert fertilizer application rates, estimate total product for a field or lawn, and check verified NPK formulas and product-specific rate context.
Fertilizer application rate calculator
Convert lb/acre and kg/ha and estimate total product needed.
Fertilizer toollb/acre to kg/ha converter
Convert application rates between U.S. and metric units.
Verified tableNPK fertilizer application rate table
N-P-K formulas, typical uses and verified rate context.
Verified tableSpecific fertilizer rates table
Urea, DAP, Milorganite, lime, gypsum, manure and other product rates.
About these tools
Rate values on these pages are context from cited Extension sources, not prescriptions. Fertilizer decisions should always start from a soil test, the crop target and the product label.