Soybean Seed Rate & Yield Calculator
Plan food-grade, crushing and tropical soybean programmes across MG maturity groups. Enter your target plant density, TSW and germination to get seed rate in kg/ha, total seed quantity and projected yield, revenue and oil output.
Commercial soybean is typically drilled at 25–35 plants/m² with 35–50 cm row spacing. Tropical MG 5–8 varieties often push higher densities than temperate MG 0–3.
How much soybean seed do you need per hectare?
Soybean seed rate is calculated as target plants per hectare divided by germination and field-establishment factors, multiplied by thousand seed weight. With 30 plants/m², 90% germination, 10% field loss and a TSW of 160 g, the calculator returns kg/ha, total seed volume, projected yield, gross revenue and crushable oil output.
- Formula: seed rate (kg/ha) = seeds/ha × TSW (160 g) ÷ 1,000,000.
- Typical density used here: 30 plants/m² on 45 cm rows.
- Reference yield 3.2 t/ha at about US$420/t.
- Oil content assumption 20% — oil output = yield × oil content.
Realistic — long-term regional average
How much soybean seed do you need?
Defaults pre-filled for soybean. Adjust TSW, target density, germination and field loss to match your supplier's technical sheet and local agronomy.
Project your soybean harvest
Combine expected yield with market price and oil content to estimate gross revenue and crushable oil output for your area.
Indicative only
- This tool is indicative only.
- It is not financial advice.
- It is not agronomic advice.
- It is not engineering design.
- Final numbers require supplier, agronomist, engineer and local regulatory review.
SeedMatch Group is an independent agricultural project sourcing and RFQ platform. We are not a farm, seed producer, fertilizer manufacturer, irrigation manufacturer, greenhouse builder, EPC contractor, lender or financial advisor. Supplier and project partner outreach is handled only after a commercial project brief is reviewed.
Supplier and manufacturer content is provided for research, transparency and discovery only. Buyers submit one project or RFQ to SeedMatch Group; our team validates and organises it, manages any suitable supplier or manufacturer outreach, and presents the responses through SeedMatch. There is no public directory of company identities, automatic matching, direct messaging or direct buyer-supplier contact.
Source soybean seed
Once you know your seed volume and target yield, a dedicated SeedMatchGroup sourcing specialist — supported by our proprietary matching technology — manages private, side-by-side proposals from independent suppliers.
soybean seed rate — frequently asked questions
At 30 plants/m², 90% germination, 10% field loss and a thousand seed weight of 160 g, the calculator derives the exact kg/ha. Adjust each input to your supplier's technical sheet — TSW alone can move the seed rate by 20–30%.
The default case uses 3.2 t/ha and 20% oil content, giving roughly 0.64 t of oil per hectare. Replace both with your agronomist's local trial data before committing to a procurement volume.
Yes. It runs entirely in your browser, requires no sign-up, and stores nothing. Only what you choose to send in an RFQ reaches SeedMatchGroup.
Yes. A dedicated sourcing specialist, supported by our proprietary matching technology, returns private side-by-side quotes from independent breeders and producers worldwide. Supplier identities stay private and all communication runs through SeedMatchGroup.
Illustrative project summary
2 ha polytunnel expansion
An established open-field grower adds protected cropping with natural ventilation and drip irrigation.
2 ha · Single-span polytunnel · Leafy greens and herbs
Indicative full greenhouse project CAPEX
USD 575K – USD 1.3M
Illustration only, not a real project or quotation. This is the structure, equipment and site-works budget for the example greenhouse, not the price of this calculator’s individual system, seeds or inputs, and not a result calculated from your entries. Excludes land, permits, packhouse, financing costs and working capital.
Based on the published commercial greenhouse cost benchmark. Written offers require a private project review; commercial projects start from USD 250K.