Seed & planting
Seed Cost Per Acre Calculator
Estimate pounds of seed, cost per acre, and total seed budget for a field.
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All Agriculture Calculators
Search a growing library of 137 free farm calculators. Filter by task or type a crop, unit, input, or calculator name to find a tool for seed and planting, fertilizer, crop protection, irrigation, harvest, livestock, machinery, or farm economics.
137 calculators available
Seed & planting
Seed Rate Calculator
Calculate seed quantity from acreage and a planned pounds-per-acre seeding rate.
Open calculatorSeed & planting
Seed Population Calculator
Estimate planting rate from target plant stand, germination, field establishment, and seeds per pound.
Open calculatorSeed & planting
Plant Spacing Calculator
Calculate in-row plant spacing from target population and crop row width.
Open calculatorSeed & planting
Seed Germination Rate Calculator
Calculate seed germination percentage from the number tested and the number that sprouted.
Open calculatorSeed & planting
Seed Bag Quantity Calculator
Estimate the number of seed bags to order and the budget using bag weight and price.
Open calculatorSeed & planting
Seed Treatment Cost Calculator
Estimate seed treatment product volume and cost across your planned acreage.
Open calculatorSeed & planting
Cover Crop Seed Calculator
Budget cover crop seed using an entered seeding rate and product price.
Open calculatorSeed & planting
Seeding Rate Adjustment Calculator
Adjust seed quantity for germination and expected field establishment to reach a target stand.
Open calculatorSeed & planting
Plant Population Per Acre Calculator
Estimate theoretical plants per acre from row spacing and in-row spacing.
Open calculatorSeed & planting
Transplant Spacing Calculator
Estimate transplant count from row spacing, in-row spacing, and growing area.
Open calculatorSeed & planting
Orchard Tree Spacing Calculator
Estimate tree population for an orchard using row spacing and tree spacing within rows.
Open calculatorSeed & planting
Vegetable Plant Density Calculator
Estimate plant count from growing area and plant spacing.
Open calculatorCrop yield & planning
Crop Yield Per Acre Calculator
Estimate crop yield per acre from a representative grain sample, test weight, and measured sample area.
Open calculatorCrop yield & planning
Crop Revenue Calculator
Estimate gross crop revenue from acreage, yield per acre, and crop sale price.
Open calculatorCrop yield & planning
Crop Break-Even Price and Yield Calculator
Calculate break-even crop price and yield from production cost and expected yield.
Open calculatorCrop yield & planning
Crop Yield Loss Calculator
Estimate crop yield shortfall, total lost production, and its value.
Open calculatorCrop yield & planning
Harvest Index Calculator
Calculate harvest index as economic yield divided by total above-ground biomass.
Open calculatorCrop yield & planning
Corn Kernel Yield Estimator
Estimate corn bushels per acre from ear count, kernels per ear, and assumed kernels per bushel.
Open calculatorCrop yield & planning
Growing Degree Day Calculator
Estimate daily growing degree days from high, low, and base temperature.
Open calculatorCrop yield & planning
Crop Moisture Weight Adjustment Calculator
Adjust harvested crop weight to a standard moisture level using dry matter balance.
Open calculatorCrop planning & weather
Planting Date Offset Calculator
Find a date before or after a reference date using a number of calendar days.
Open calculatorCrop planning & weather
Preharvest Interval Date Calculator
Calculate the earliest date after application based on the entered label interval.
Open calculatorFertilizer & soil
Fertilizer Cost Per Acre Calculator
Estimate fertilizer pounds, material cost per acre, and total field fertilizer budget.
Open calculatorFertilizer & soil
Fertilizer Bag Quantity Calculator
Estimate fertilizer bags required and total purchase cost for a field.
Open calculatorFertilizer & soil
Nitrogen Fertilizer Rate Calculator
Calculate product rate and cost from a nitrogen target and fertilizer analysis.
Open calculatorFertilizer & soil
NPK Nutrient Product Rate Calculator
Convert a target nutrient rate and fertilizer grade into product pounds per acre.
Open calculatorFertilizer & soil
Fertilizer Nutrient Credit Calculator
Subtract entered soil, manure, and previous-crop credits from a nutrient target.
Open calculatorFertilizer & soil
Lime Application Rate Calculator
Adjust a lab lime recommendation for material effectiveness and estimate cost.
Open calculatorFertilizer & soil
Manure Application Rate Calculator
Estimate manure tons per acre from available nutrient content and a nutrient target.
Open calculatorFertilizer & soil
Compost Volume Calculator
Estimate compost cubic yards and material cost from area and application depth.
Open calculatorFertilizer & soil
Soil Volume Calculator
Calculate soil or growing media volume in cubic yards from area and depth.
Open calculatorFertilizer & soil
Soil Bulk Density Calculator
Calculate soil bulk density from dry sample weight and measured volume.
Open calculatorFertilizer & soil
Soil Organic Matter Stock Calculator
Estimate organic matter mass from percentage and the soil mass represented by a sampled layer.
Open calculatorFertilizer & soil
Fertilizer Cost Per Pound of Nutrient Calculator
Compare nutrient economics by calculating price per pound of the nutrient in a fertilizer product.
Open calculatorFertilizer & soil
Fertilizer Blend Grade Calculator
Calculate combined nutrient grade from two products and their blend weights.
Open calculatorFertilizer & soil
Compost Carbon to Nitrogen Ratio Calculator
Calculate the carbon-to-nitrogen ratio from ingredient or lab percentages.
Open calculatorFertilizer & soil
Fertigation PPM Product Calculator
Estimate the product mass needed to prepare a nutrient solution at a target ppm.
Open calculatorFertilizer & soil
Crop Nutrient Removal Calculator
Estimate nutrient removal using harvested yield and an entered removal factor.
Open calculatorFertilizer & soil
Fertilizer Spreader Calibration Calculator
Scale collected product by a test area to estimate pounds applied per acre.
Open calculatorSpraying & crop protection
Sprayer Nozzle Flow Rate Calculator
Calculate the required gallons per minute per nozzle and total boom flow for a target spray rate.
Open calculatorSpraying & crop protection
Sprayer Calibration GPA Calculator
Calculate actual gallons per acre from measured nozzle flow, speed, and nozzle spacing.
Open calculatorSpraying & crop protection
Sprayer Travel Speed Calculator
Calculate target travel speed from nozzle flow, target spray volume, and nozzle spacing.
Open calculatorSpraying & crop protection
Sprayer Tank Mix Calculator
Estimate product quantity, carrier water, tank fills, and product cost for a treatment area.
Open calculatorSpraying & crop protection
Spray Solution Dilution Calculator
Calculate stock solution and water volumes to reach a target concentration.
Open calculatorSpraying & crop protection
Sprayer Boom Width Calculator
Calculate effective boom width from nozzle count and nozzle spacing.
Open calculatorSpraying & crop protection
Sprayer Acres Per Tank Calculator
Estimate acres covered by one full tank and the number of fills for a field.
Open calculatorSpraying & crop protection
Spray Treatment Cost Per Acre Calculator
Add product, application, and other charges to estimate treatment cost per acre.
Open calculatorSpraying & crop protection
Field Treatment Product Cost Calculator
Estimate crop protection product quantities and product-only cost for a field.
Open calculatorSpraying & crop protection
Spray Carrier Water Volume Calculator
Estimate total carrier water and sprayer fills from acres and gallons per acre.
Open calculatorIrrigation & water
Irrigation Water Need Calculator
Convert irrigated acres and target depth into total gallons of water required.
Open calculatorIrrigation & water
Irrigation Runtime Calculator
Estimate pumping hours for a target net depth, acreage, flow rate, and system efficiency.
Open calculatorIrrigation & water
Irrigation Application Rate Calculator
Calculate irrigation depth applied per hour from system flow and irrigated acreage.
Open calculatorIrrigation & water
Crop Evapotranspiration ETc Calculator
Estimate crop water use by multiplying reference ET by a crop coefficient.
Open calculatorIrrigation & water
Irrigation Water Cost Calculator
Estimate water cost from area, applied depth, and a price per thousand gallons.
Open calculatorIrrigation & water
Irrigation Pump Horsepower Calculator
Estimate water horsepower requirement adjusted for pump efficiency and total dynamic head.
Open calculatorIrrigation & water
Rainfall Volume Calculator
Convert rainfall depth over a catchment or field into gallons of water.
Open calculatorIrrigation & water
Well Flow Rate Calculator
Calculate gallons per minute from a measured container volume and fill time.
Open calculatorIrrigation & water
Water Tank Capacity Calculator
Estimate rectangular tank capacity in cubic feet and US gallons.
Open calculatorIrrigation & water
Irrigation Pump Energy Cost Calculator
Estimate electricity use and cost from pump power, operating hours, and energy price.
Open calculatorIrrigation & water
Irrigation Water Deficit Calculator
Estimate the remaining crop water deficit after effective rainfall and adjust for system efficiency.
Open calculatorIrrigation & water
Irrigation Set Time Calculator
Estimate irrigation set duration from block size, target depth, flow, and application efficiency.
Open calculatorIrrigation & water
Drip Irrigation Emitter Output Calculator
Estimate drip system water volume from emitter flow, count, and operating time.
Open calculatorGrain & harvest
Grain Moisture Shrink Calculator
Estimate final grain weight, moisture-only shrink, and bushel-equivalent weight reduction.
Open calculatorGrain & harvest
Grain Drying Cost Calculator
Estimate a drying charge from grain quantity, initial moisture, target moisture, and fee per point.
Open calculatorGrain & harvest
Grain Moisture Blending Calculator
Calculate blended moisture from two grain lots with different weights and moisture levels.
Open calculatorGrain & harvest
Grain Bin Capacity Calculator
Estimate cylindrical grain bin volume and bushel capacity from dimensions and fill level.
Open calculatorGrain & harvest
Bushel to Pound Calculator
Convert bushels to pounds and US short tons using the entered crop test weight.
Open calculatorGrain & harvest
Grain Weight at Standard Moisture Calculator
Adjust grain weight to a selected standard moisture content using dry-matter balance.
Open calculatorGrain & harvest
Grain Moisture Shrink Value Calculator
Estimate moisture-related weight reduction and its bushel-equivalent value at a grain price.
Open calculatorGrain & harvest
Grain Storage Volume Calculator
Estimate usable cylindrical storage volume and nominal bushel capacity for a grain bin.
Open calculatorGrain & harvest
Silage Pile Capacity Calculator
Estimate silage pile volume, as-fed tonnage, expected storage loss, and remaining feed value.
Open calculatorGrain & harvest
Hay Bale Count Calculator
Estimate hay bales from field acreage, yield, bale weight, and loss allowance.
Open calculatorFarm finance
Farm Cost Per Acre Calculator
Divide total farm or crop expenses by acres to estimate cost per acre.
Open calculatorFarm finance
Farm Profit and Margin Calculator
Estimate net farm income, return per acre, and profit margin from entered revenue and costs.
Open calculatorFarm finance
Crop Gross Margin Calculator
Estimate revenue less entered variable costs and compare the result across crop acreage.
Open calculatorFarm finance
Farm Loan Payment Calculator
Estimate monthly payment, total payments, and total interest for a fixed-rate farm loan.
Open calculatorFarm finance
Farm Investment ROI Calculator
Estimate simple return on investment and average annual benefit from entered investment figures.
Open calculatorFarm finance
Farmland Cash Rent Break-Even Calculator
Estimate maximum cash rent per acre after crop revenue, non-land costs, and target return.
Open calculatorFarm finance
Cost Per Bushel Calculator
Calculate total production cost per bushel from field costs, acreage, and yield.
Open calculatorFarm finance
Machinery Cost Per Acre Calculator
Estimate ownership and operating machinery costs per hour and acre.
Open calculatorFarm finance
Farm Equipment Depreciation Calculator
Estimate straight-line annual depreciation from purchase cost, salvage value, and useful life.
Open calculatorFarm finance
Farm Labor Cost Calculator
Estimate total labor cost after hourly wages, shift time, worker count, and payroll burden.
Open calculatorFarm finance
Farm Cash Flow Calculator
Estimate ending cash after inflows, operating outflows, and debt payments.
Open calculatorFarm finance
Farm Operating Expense Ratio Calculator
Calculate operating expenses as a percentage of farm revenue.
Open calculatorFarm finance
Crop Price and Yield Sensitivity Calculator
Compare crop revenue under changed price and yield assumptions while retaining entered costs.
Open calculatorFarm finance
Custom Farming Rate Calculator
Estimate a cost-covering custom farming charge per acre from annual fixed costs, operating cost, work hours, effective capacity, and target margin.
Open calculatorFarm finance
Farm Working Capital Calculator
Calculate working capital and current ratio from current farm assets and current liabilities.
Open calculatorMachinery & equipment
Field Capacity Calculator
Estimate theoretical and effective acres per hour from implement width, speed, and field efficiency.
Open calculatorMachinery & equipment
Tractor Fuel Cost Calculator
Estimate diesel use and fuel cost from hours, fuel burn per hour, and price per gallon.
Open calculatorMachinery & equipment
Tractor Field Work Time Calculator
Estimate hours needed for a field pass from acreage, implement width, speed, and efficiency.
Open calculatorMachinery & equipment
Farm Equipment Cost Calculator
Combine annual fixed ownership and hourly operating costs to estimate machine costs.
Open calculatorMachinery & equipment
Farm Equipment Buy vs Hire Calculator
Compare annualized equipment ownership plus operating costs with a hire rate.
Open calculatorMachinery & equipment
Pump Running Cost Calculator
Calculate electricity use and running cost for an electric motor or agricultural pump.
Open calculatorLivestock & forage
Livestock Feed Cost Calculator
Estimate feed quantity and cost for a herd over a selected feeding period.
Open calculatorLivestock & forage
Livestock Dry Matter Intake Calculator
Estimate dry matter demand and as-fed feed quantity after moisture and waste allowances.
Open calculatorLivestock & forage
Cattle Stocking Rate Calculator
Estimate forage-supported animal numbers and acreage from usable forage supply and daily demand.
Open calculatorLivestock & forage
Hay Requirement Calculator
Estimate total hay demand, number of bales, and bale budget for a herd.
Open calculatorLivestock & forage
Livestock Average Daily Gain Calculator
Calculate average daily gain from starting weight, ending weight, and days on feed.
Open calculatorLivestock & forage
Feed Conversion Ratio Calculator
Calculate feed conversion ratio from total feed consumed and liveweight gain.
Open calculatorLivestock & forage
Livestock Water Requirement Calculator
Estimate total drinking water needed for a herd over a selected period.
Open calculatorLivestock & forage
Livestock Feed Days Calculator
Estimate how many days the current feed inventory will last for a herd.
Open calculatorLivestock & forage
Pasture Acres Per Animal Calculator
Estimate pasture acres needed from forage supply, grazing period, animal demand, and herd size.
Open calculatorLivestock & forage
Hay Bale Value Calculator
Estimate hay cost per US short ton and per pound from bale weight and price per bale.
Open calculatorLivestock & forage
Livestock Profit Per Head Calculator
Estimate gross return per head and combined returns after per-head production costs.
Open calculatorLivestock & forage
Feed Mix Cost Calculator
Estimate weighted average ingredient cost for a two-ingredient feed mix.
Open calculatorLand & unit conversions
Acres to Hectares Converter
Convert acres to hectares using the exact area conversion factor.
Open calculatorLand & unit conversions
Hectares to Acres Converter
Convert hectares to acres for land area and farm records.
Open calculatorLand & unit conversions
Pounds to Kilograms Converter
Convert pounds to kilograms for seed, feed, crop, and material weights.
Open calculatorLand & unit conversions
Kilograms to Pounds Converter
Convert kilograms to pounds for agricultural products and equipment weights.
Open calculatorLand & unit conversions
US Gallons to Liters Converter
Convert US gallons to liters for water, spray mix, and liquid products.
Open calculatorLand & unit conversions
Liters to US Gallons Converter
Convert liters to US gallons for irrigation and spray tank volumes.
Open calculatorLand & unit conversions
Pounds Per Acre to Kg Per Hectare Converter
Convert application rates from pounds per acre to kilograms per hectare.
Open calculatorLand & unit conversions
GPA to Liters Per Hectare Converter
Convert US gallons per acre into liters per hectare for spray application comparisons.
Open calculatorLand & unit conversions
Fahrenheit to Celsius Converter
Convert Fahrenheit temperatures to Celsius for crop and weather records.
Open calculatorLand & unit conversions
Inches to Millimeters Converter
Convert rainfall, irrigation depth, and spacing measurements from inches to millimeters.
Open calculatorLand & unit conversions
Square Feet to Acres Converter
Convert building, bed, and plot area from square feet to acres.
Open calculatorLand & unit conversions
Field Acreage Calculator
Estimate rectangular field acreage from field length and width in feet.
Open calculatorLand & unit conversions
Triangular Field Area Calculator
Estimate acres in a triangular field using base and perpendicular height.
Open calculatorLand & unit conversions
Bushels to Pounds and Tons Converter
Convert bushels to pounds and US short tons using the chosen crop test weight.
Open calculatorCrop yield & planning
Plant Stand Count Calculator
Estimate plant population per acre from row spacing and the number of plants in a measured row segment.
Open calculatorGrain & harvest
Silage Storage Loss Calculator
Estimate stored silage tonnage and value remaining after a loss allowance.
Open calculatorLand & unit conversions
Bushels Per Acre to Tons Per Acre Converter
Convert bushels per acre to grain pounds and US short tons using crop test weight.
Open calculatorLand & unit conversions
Acres to Square Feet Converter
Convert acres to square feet for field dimensions, facilities, and layout plans.
Open calculatorLand & unit conversions
Square Miles to Acres Converter
Convert square miles to acres for large farm and land-area records.
Open calculatorLand & unit conversions
Cubic Yards to Cubic Feet Converter
Convert cubic yards to cubic feet for soil, compost, and aggregate estimates.
Open calculatorLand & unit conversions
Cubic Feet to US Gallons Converter
Convert cubic feet to US gallons for tank and water-storage estimates.
Open calculatorLand & unit conversions
Celsius to Fahrenheit Converter
Convert Celsius temperatures to Fahrenheit for crop and weather records.
Open calculatorLand & unit conversions
Millimeters to Inches Converter
Convert millimeters to inches for rainfall, water depth, and measurements.
Open calculatorLand & unit conversions
Kg Per Hectare to Pounds Per Acre Converter
Convert seeding and nutrient application rates from kilograms per hectare to pounds per acre.
Open calculatorLand & unit conversions
Liters Per Hectare to GPA Converter
Convert spray application volume from liters per hectare to US gallons per acre.
Open calculatorLand & unit conversions
Acre-Inches to Gallons Calculator
Convert acre-inches of water into US gallons for irrigation planning.
Open calculatorLand & unit conversions
GPM to Liters Per Second Converter
Convert irrigation or pump flow from US gallons per minute to liters per second.
Open calculatorFarm finance
Field Cost Per Acre Calculator
Divide total field expenses by acreage to estimate production or operation cost per acre.
Open calculatorFertilizer & soil
Manure Spreader Calibration Calculator
Estimate manure application rate from a catch test and measured area.
Open calculatorIrrigation & water
Crop Water Use Efficiency Calculator
Estimate yield output per unit of water applied using entered yield and water volume.
Open calculatorCrop planning & weather
Days Between Farming Dates Calculator
Count calendar days between planting, spraying, irrigation, harvest, or other farm dates.
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