Greenhouse tomato yield conversion table
The table assumes one full acre of planted crop area. A real greenhouse has aisles, work zones and utility spaces, so yield per acre of total facility footprint will be lower.
| Yield per planted area | Metric tonnes per hectare | Pounds per planted acre | US short tons per planted acre |
|---|---|---|---|
| 20 kg/m² | 200 t/ha | 178,000 lb/acre | 89 tons/acre |
| 30 kg/m² | 300 t/ha | 268,000 lb/acre | 134 tons/acre |
| 40 kg/m² | 400 t/ha | 357,000 lb/acre | 178 tons/acre |
| 50 kg/m² | 500 t/ha | 446,000 lb/acre | 223 tons/acre |
| 60 kg/m² | 600 t/ha | 535,000 lb/acre | 268 tons/acre |
| 70 kg/m² | 700 t/ha | 625,000 lb/acre | 312 tons/acre |
What published high-tech greenhouse figures show
A 2022 peer-reviewed study in the Journal of Cleaner Production modelled high-tech greenhouse tomato production at 60.2 to 71.6 kg/m² across three Washington State locations. The authors also note that these simulated yields did not include fruit losses and reflected strong environmental management. The study is useful for understanding yield drivers, but its results should not be copied into a project forecast without local validation. Read the open-access research article.
A 2011 comparison indexed by FAO AGRIS reported 496 t/ha for a modern greenhouse tomato crop over an eight-month harvest period in upstate New York. That converts to roughly 49.6 kg/m² or 221 US short tons per planted acre. The same study examined energy input as well as yield, which matters when evaluating commercial viability. See the FAO AGRIS record.
An older USDA Economic Research Service industry report found that average US and Canadian greenhouse yields frequently approached 500 t/ha per season, while experienced operations could reach 700 t/ha. The report also warned that higher yield did not automatically offset higher investment and operating costs. Because the underlying industry data are from the early 2000s, use them as historical context, not as a current local benchmark. View the USDA report.
Why yield numbers are often misleading
Planted area versus total site area
A yield stated per square metre normally refers to crop area. A one-acre greenhouse footprint contains paths, headhouse connections and service space. A one-acre property may also include roads, tanks, packing and drainage. Always state the denominator.
Gross fruit versus marketable fruit
Research results may report harvested biomass, while a sales forecast needs packed, saleable fruit. Size, appearance, cracking, blossom-end rot, pest damage and handling losses affect packout. Use measured packout from the chosen market specification when available.
Crop cycle versus calendar year
An eight-month harvest, an eleven-month crop and an annualized simulation are not directly comparable. Record transplant date, first harvest, final harvest and downtime for cleaning and replanting.
Tomato type and sales specification
Beefsteak, tomato-on-the-vine, plum and cherry crops differ in fruit size, labor, packing and yield pattern. Select the variety for market demand and local performance, then build the yield plan around that crop.
Build a bankable yield model
Use three cases rather than one optimistic figure: conservative, operating target and upside. Each case should use the same transparent formula:
For example, suppose a one-acre greenhouse uses 80% of its floor for crop area, the agronomic target is 50 kg/m² and marketable packout is 90%. The model produces about 145,700 kg, 321,000 lb or 161 US short tons of saleable tomatoes for that crop cycle. This is a calculation example, not a CFGET yield promise.
Inputs that drive the forecast
| Input | Question to answer | How to validate it |
|---|---|---|
| Outside climate and light | Can the crop maintain production through the planned season? | Hourly weather data and a crop-climate assessment |
| Greenhouse capability | Can ventilation, cooling, heating and screens meet the target conditions? | Equipment capacities and design calculations |
| Root-zone management | Can irrigation and fertigation maintain stable water, EC and pH targets? | Water analysis, hydraulic design and drainage measurements |
| Crop plan | Which variety, stem density, pruning method and cycle are used? | Local trials and advice from a qualified crop specialist |
| Pollination and crop protection | How will fruit set and pest pressure be managed? | Documented operating protocols and monitoring records |
| Labor and harvest | Can the team prune, lower, harvest and pack on schedule? | Task-level labor plan and weekly production forecast |
| Packout | What percentage meets the buyer's specification? | Historical data or a conservative assumption tested in sensitivity analysis |
What to ask a greenhouse supplier
- Which outside design conditions were used to size ventilation, cooling and heating?
- What crop load and trellis load are included in the structural design?
- How are irrigation zones, drainage collection and water treatment arranged?
- Which sensors and control points are included, and what happens during power failure?
- Which yield inputs come from local crop evidence, and which are assumptions?
- Who is responsible for agronomy, commissioning and operator training?
Explore CFGET's tomato greenhouse options, then use the commercial greenhouse planning guide to prepare the site and production brief.
Define the greenhouse around your production target
Send the project location, crop type, season, floor area and target yield to info@cfgreenhouse.com, or use the CFGET contact page. We can separate equipment requirements from agronomic assumptions before quotation.