Compost Application Calculator

Calculate application rates and nutrient value of compost and organic amendments.

Compost/Amendment Type

Application Goal

Target Nitrogen (lbs N/acre)

Target OM Increase (%)

Increase in soil OM percentage desired

Application Rate (tons/acre)

Soil Building Rate

Field Size (acres)

Compost Cost ($/ton)

N Availability (%)

% of total N available 1st year

Application Results

Total Compost Needed

Rate per Acre -

Cubic Yards/Acre -

Depth (inches) -

Total Nitrogen -

Available N (1st Year) -

Phosphorus (P2O5) -

Potassium (K2O) -

OM Added per Acre -

Est. Soil OM Increase -

Cost per Acre -

Total Cost -

Cost per lb Available N -

Note: Compost provides long-term soil benefits beyond first-year nutrients. Consider 3-5 year applications for significant OM building.