01
Formula
Product pounds = acres × nutrient per acre ÷ (analysis ÷ 100).
Lime tons = acres × tons per acre. Spray gallons = acres × gallons per acre. The pesticide calculator uses the spray mode. Put the labeled rate in the gallons field.
Apply for financingFertilizer
Fertilizer calculator for product, lime, and spray rate
This fertilizer calculator turns a nutrient target and a guaranteed analysis into pounds of product. The same page is a fertilizer rate calculator, a lime calculator in tons per acre, and a pesticide calculator when you switch to spray gallons. The spray rate calculator multiplies acres by gallons per acre. Follow the product label. These rates are the ones you enter.
Job
Product
3,261lb
Per acre326.09 lb
Analysis46%
Nutrient target150 lb/acre
Planning estimate from the numbers you enter. Coverage, density, waste and price are assumptions, not a supplier quote or an engineering specification.
How it works
Product pounds equal the nutrient you want, divided by the analysis.
Pounds of product equal acres times nutrient pounds per acre divided by the analysis as a decimal. Ten acres at 150 pounds of nutrient per acre and a 46 percent analysis need 3,260.87 pounds of product, or 326.09 pounds per acre. Lime is simpler: acres times the tons per acre you enter. Ten acres at 2 tons per acre is 20 tons. Spray gallons equal acres times gallons per acre. Ten acres at 20 gallons per acre is 200 gallons. None of those defaults is a recommendation. A soil test or a label sets the rate. This page only multiplies.
02
Example
10 acres, 150 pounds of nutrient, 46 percent analysis.
The fertilizer rate calculator result is 3,260.87 pounds of product. Switch to lime at 2 tons per acre and the lime calculator shows 20 tons. Switch to spray at 20 gallons per acre and the spray rate calculator shows 200 gallons.
03
Tips
The analysis percent has to match the nutrient you named.
If you want nitrogen from 46-0-0, type 46. If you want phosphate from a blended product, type the phosphate percent, not the nitrogen percent. Do not stack modes. Run one product at a time.
04
Equipment
A spreader or a sprayer applies the rate.
Dengaro arranges financing for a spreader, a sprayer, or a tractor. The product cost is not on this page and is not a loan amount.
Important questions
Know what to expect.
Is 150 pounds per acre a recommended rate?+
No. It is a filled-in example so the fertilizer calculator has a number. Replace it with the rate from your soil test or the label.
How is the lime calculator different?+
Lime is entered as tons per acre, not as a percent analysis. The page multiplies acres by that tonnage. It does not convert a soil pH into a lime rate.
Can this pesticide calculator mix a tank?+
It gives total gallons from acres and a per-acre spray rate. It does not split a jug into a tank concentration. Use the dilution calculator for concentrate and water.
What if the label is in pints per acre?+
Convert pints to gallons before you type, or treat the field as pints and read the result in pints. The page does not know the unit except by what you type.
Financing built into the sale