Free tools for grain growers and crop farmers. Calculate seeding rates, estimate yield, blend fertilizers, measure harvest loss, and optimise every step of crop production.
Calculate seed required per hectare based on target plant population, seed size and germination rate. For wheat, barley, canola and more.
Calculate →Predict yield in tonnes per hectare based on rainfall, rain use efficiency and stress factors. Essential for harvest planning.
Calculate →Calculate exact N-P-K blends using Urea, DAP, MAP, MOP and other fertilizers. Hit your nutrient targets precisely.
Calculate →Calculate plants per square metre from seeding rate, germination and establishment. Verify your crop stand.
Calculate →Calculate plant spacing within and between rows for optimal plant populations.
Calculate →Measure grain loss behind the header and walker. Reduce harvest waste and save money.
Calculate →Calculate shrinkage and adjust weight for high-moisture grain. Essential for deliveries.
Calculate →Calculate germination percentage from seed tests. Adjust seeding rates accurately.
Calculate →Plan optimal crop sequences to improve soil health and reduce disease pressure.
Calculate →Calculate farm gate price after freight, levies and deductions. Compare buyer offers.
Calculate →Calculate storage capacity in silos and bunkers. Plan harvest logistics.
Calculate →Calculate break-even yield and price. Know what you need to cover costs.
Calculate →Getting crop production numbers right directly impacts your bottom line. A 10% error in seeding rate can cost $20-50 per hectare in wasted seed or lost yield. Incorrect fertilizer blending wastes expensive inputs or reduces grain quality. Harvest loss of just 1% across 1,000 hectares costs 10+ tonnes of grain.
All calculators are based on agronomic formulas used by agronomists and grain growers worldwide. Free to use, no sign-up required.