Agro decisions based on data

Liming, fertilization, sprayer and seeder setting, irrigation, cost per bag and grain drying in one place. Each calculation shows the equations, assumptions and references used, and generates a PDF report.

89 calculators · no sign-up · free

Line illustration of a productive scene: an office with a schedule and charts, pipes and tanks, solar panels and wind turbines, and a warehouse with a forklift and cargo trucks.
From the field calculation to grain storage and transport.
Our purpose

Our goal is to bring clear, easy-to-use technical tools for agribusiness to support field and management decisions. The calculators are indicative and educational: they do not replace the agronomist, the livestock specialist, or the technical prescription.

89calculators
5areas: soil, machinery, water, grain and costs
2unit systems
PDFcalculation report

Nine agribusiness areas

Choose the area to see the groups and calculators.

Soil and fertilizationCrop and yieldMachines and applicationWater and irrigationGrain and storageManagement and costsEnvironment and legislationLivestock and aquacultureField tools
Soil and fertilization

Liming by base saturation

Calculate how many tonnes of limestone raise the soil's base saturation to the level the crop needs. Enter the CTC, the current saturation, the target and the limestone's PRNT; the result shows the requirement per hectare.

Calculate the liming →
Liming by base saturation
Machines and application

Sprayer setting

Nozzle flow, spray volume per hectare and pressure for the desired flow, from travel speed and nozzle spacing. Use it to calibrate before application and to check the tank.

Set up the sprayer →
Sprayer setting
Water and irrigation

Depth and irrigation interval

Crop evapotranspiration, the water available in the soil and the system efficiency give the gross depth, the irrigation interval and the irrigation time based on the equipment's flow rate.

Calculate the irrigation interval →
Depth and irrigation interval
Management and costs

Cost per hectare and per bag

Add the costs of inputs, operations, machinery and financing, and see the cost per bag, the break-even point in bags, and the margin over the expected yield and price.

Calculate the cost →
Cost per hectare and per bag
Grain and storage

Grading and drying

Deductions for moisture, impurities, and damaged grain at delivery, and the energy and time to dry the grain to storage moisture.

Charts with technical interpretation

Each result comes with charts and text that explains what the number means for the decision.

Spray mix preparation
Spray mix preparation

Product per tank and per area from the dose you entered, with the area covered per tank and the total to buy.

Planter setting
Planter setting

Seeds per meter and kg per hectare, corrected for expected germination and emergence.

Tractor hourly cost
Tractor hourly cost

Depreciation, interest, fuel, maintenance, and operator added together, with the cost per hectare based on operational capacity.

Delivery deduction
Delivery deduction

Net weight and batch value after deductions for moisture, impurities and damaged grain, with fields you can edit to match the contract.

From the data to the calculation memo

01Selection

Find the calculator by searching or through the menus of the nine areas: soil and fertilization, crops and yield, machinery and application, water and irrigation, grain and storage, management and costs, environment and legislation, livestock and aquaculture, and field tools.

02Settings

Each page includes a filled-in example. Replace it with your own crop data, in metric or imperial units; the result is recalculated immediately.

03Documentation

Generate the calculation memo in PDF, with inputs, equations, assumptions, and references, to take to your agronomist's or livestock specialist's review.

Start with the first calculation

Free, no sign-up required. Data stays in your browser. Corrections, calculator suggestions, and real usage examples help improve the tools for everyone.

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Methods and references cited in each calculator · Embrapa · IAC · ASABE · ABNT NBR