Aquaponic Feed-to-Plant Ratio Calculator
Calculate the balanced ratio of fish feed input to plant growing area in aquaponic systems. Match nutrient output from fish to plant uptake capacity.
Free Crops Calculators
14 toolsCrop planning, yield, and variety calculators. Browse our free crops tools below — no sign-up required.
Cover Crop Selector
Select the best cover crop species based on your management goals — nitrogen fixation, erosion control, compaction relief, or weed suppression.
Crop Calendar Calculator
Generate a crop calendar with key growth stage dates from planting through harvest using GDD milestones. Plan scouting and management timing.
Crop Rotation Planner
Plan multi-year crop rotations with nitrogen credit tracking, disease break years, and crop family rules. Optimize soil health and reduce input costs.
Crop Variety Comparison Calculator
Compare crop varieties side by side on maturity, yield, disease resistance, seed cost, and estimated ROI. Choose the best variety for your operation.
Expected Yield Per Acre Calculator
Estimate expected crop yield per acre using trend yield adjusted for soil quality, management level, and weather conditions. Plan realistic production targets.
Grafting Success Rate Calculator
Estimate the number of successful grafts from total attempts based on your grafting success percentage. Plan rootstock and scion wood quantities.
Growing Degree Days (GDD) Calculator
Calculate accumulated growing degree days from daily high and low temperatures. Track crop development stages with GDD heat unit summation.
Growing Season Length Calculator
Calculate growing season length in days between last spring frost and first fall frost. Ensure your crops have enough time to reach maturity.
Harvest Date Estimator
Estimate crop harvest date from planting date, relative maturity rating, and a weather adjustment factor. Plan harvest logistics in advance.
Hydroponic Nutrient Solution Calculator
Calculate stock solution dilution ratios, target EC, and pH ranges for hydroponic nutrient management. Mix precise nutrient solutions for soilless growing.
Indoor Growing Light Hours Calculator
Calculate Daily Light Integral (DLI) based on PPFD and photoperiod. Determine how many hours of supplemental light your indoor crops need each day.
Plant Population per Acre Calculator
Calculate plant population per acre from row spacing and in-row plant spacing. Essential for stand assessment and yield estimation.
Vertical Farm Layer Yield Calculator
Estimate annual yield from a vertical farm based on growing layers, area per layer, crop cycles per year, and yield per cycle. Plan indoor farm productivity.