Greenhouse Profit Calculator

Estimate greenhouse enterprise profit from saleable yield and cost

Greenhouse and protected-crop enterprises can generate high output from a small area while also carrying substantial labor, energy, structure and marketing costs. This calculator estimates saleable kilograms, revenue and profit from growing area, yield, crop loss, price, variable cost and fixed-cost allocation.

The saleable-loss input is important because harvested biological yield is not always marketable yield. Grade, disease, timing, shrink and unsold product can reduce revenue even when production is physically high. A realistic budget should therefore focus on kilograms actually sold at the entered average price.

How the calculation works

The calculator separates biological loss, area-based operating cost and fixed facility cost. Area multiplied by yield gives potential output; the unsaleable-loss fraction reduces it to saleable kilograms. Saleable output multiplied by price gives revenue. Variable cost per square metre times area plus fixed cost is subtracted to estimate profit.

Growing area is square metres, yield is kg/m² and selling price is currency per kg. Variable cost is per m² and fixed cost is a whole-enterprise currency amount. Keep greenhouse aisle or service area treatment consistent when choosing growing area.

What each calculator input means

Growing area

Use productive growing area represented by the yield assumption. If yield figures are based on bed area, do not use gross structure footprint without adjusting for aisles and service space. The field is entered in m².

Saleable yield

Enter expected harvestable kilograms per square metre before the separate unsaleable-loss adjustment. Use crop-cycle or annual yield consistently with the period represented by costs and price. The field is entered in kg/m².

Selling price

Use realistic average net selling price across grades, channels and season. A small quantity sold at a premium direct-market price may not represent all output. The field is entered in per kg.

Variable cost

Include costs that change with area or crop cycle, such as plants or seed, growing media, fertilizer, packaging, heating energy where treated as variable, biological controls and direct labor according to the budget. The field is entered in per m².

Fixed cost allocation

Allocate structure depreciation, insurance, equipment ownership, administration or other overhead not already included in the variable line. Keep financing and tax treatment consistent with the analysis purpose. The field is entered in currency.

Unsaleable crop

Enter the percentage of potential output that is not sold because of grading, crop loss, spoilage or marketability assumptions. If the yield input already represents saleable yield, set this to zero to avoid double-counting. The field is entered in %.

Protected production shifts risk rather than eliminating it

A greenhouse can reduce exposure to rainfall and extend seasons, but it creates dependence on structure, ventilation, heating, irrigation, pest management and labor. Energy price or equipment failure can become major risks that an outdoor field budget does not face.

Budget the production system that actually exists, including utility and capital costs. High gross revenue per square metre does not automatically mean high return on invested capital.

Marketable yield and average realized price drive revenue together

A premium selling price is valuable only for the kilograms that can be sold through that channel. Surplus production, lower grades or seasonal competition can reduce the average realized price across the whole crop.

Model saleable loss and price conservatively, then test alternative marketing scenarios. Contracts, direct sales and wholesale channels can have different prices, packaging costs and unsold-product risk.

Worked example

A 500 m² house yielding 20 kg/m² with 5% loss sells 9,500 kg; at 2/kg, revenue is 19,000 and profit is 6,500 after stated costs.

A 500 m² growing area at 20 kg/m² produces 10,000 kg before losses. With 5% unsaleable crop, 9,500 kg remains. At 2 per kg, revenue is 19,000; after 7,500 variable cost and 5,000 fixed cost, estimated profit is 6,500.

Use greenhouse profit scenarios to test both production and market assumptions

Run scenarios for yield loss, energy or labor cost and selling price. Protected-crop margins can be highly sensitive to a small number of variables, so knowing the break-even saleable yield and price is more useful than relying on one optimistic budget.

Compare the estimated profit with the capital tied up in the structure and equipment. A profitable enterprise can still have a weak return on capital if investment is large relative to annual earnings.

• Estimate saleable greenhouse output after crop or grading loss.
• Compare profit at alternative yield and price assumptions.
• Evaluate the impact of higher variable or energy cost.
• Provide profit for simple return-on-capital analysis.

Common mistakes that can distort the result

• Using gross greenhouse footprint with a yield measured only on bed area.
• Applying an unsaleable-loss percentage to a yield that is already saleable.
• Using the highest retail price for all production.
• Omitting structure depreciation or major energy and labor costs.
• Comparing greenhouse profit with field-crop profit without considering capital invested.

Limitations and responsible use

The calculator does not model crop cycles, seasonal price variation, energy by month, labor peaks, financing, taxes, depreciation methods or cash-flow timing. It assumes one average yield, loss rate and selling price for the analyzed period.

Use crop-specific protected-production budgets and actual utility, labor and marketing records. Major structure investments warrant multi-year capital and cash-flow analysis.

For the next step in the same planning workflow, compare the result with Farm Profit Calculator, Crop Production Cost Calculator and Farm ROI Calculator. Using related calculations together can expose an assumption that is easy to miss when a single number is viewed on its own.