Commercial Oxygen Demand & LOX Cost Calculator
Flexes feeding rate, safety margin, transfer efficiency and LOX price.
Calculator inputs
Peak in-water biomass, not annual harvest.
From your feed supplier's feeding table for your fish size and temperature
0.25 from Timmons & Ebeling; use your designer's figure if different
Use the tested transfer efficiency of the oxygenation equipment you are quoting
Results
Daily O₂ delivered
Biological demand 750 kg/day
Annual LOX consumption
418.7 tonnes
Annual O₂ cost
$117,229
Peak hourly demand
47.79 kg/h
Results at a glance
| Output | Pessimistic | Base case | Optimistic |
|---|---|---|---|
| Daily O₂ delivered | 1,645.5 kg/day | 1,147.1 kg/day | 946.5 kg/day |
| Annual LOX consumption | 600.6 tonnes | 418.7 tonnes | 345.5 tonnes |
| Annual O₂ cost | $210,215 | $117,229 | $82,225 |
| Peak hourly demand | 68.56 kg/h | 47.79 kg/h | 39.44 kg/h |
Scenario range
Daily O₂ delivered
Result summary with the inputs used
Inputs used
- Steady-state biomass
- 300 t
- Daily feeding rate
- 1 % of biomass/day
- Oxygen per kg feed
- 0.25 kg O₂/kg feed
- O₂ transfer efficiency
- 85 %
- Safety margin
- 30 %
- LOX delivered price
- 0.28 $/kg
Results · Base case scenario
- Daily O₂ delivered
- 1,147.1 kg/day
- Annual LOX consumption
- 418.7 tonnes
- Annual O₂ cost
- $117,229
- Peak hourly demand
- 47.79 kg/h
Biological demand 750 kg/day
418,676 kg/yr
$0.39 / kg biomass
Size cones / dissolvers to this peak
Planning estimate from the inputs shown — not a supplier quote, guarantee, financing approval, engineering advice or confirmed availability.
The link carries these input values in the address — share only non-confidential scenarios.
Turn this result into 1–3 supplier quotes
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How supplier matching works
- 1. Private brief. Your spec goes only to manufacturers we have selected for the right category, capacity and export experience.
- 2. Confidential outreach. Suppliers see the technical spec — not your name, company or exact location — until you accept a quote.
- 3. Comparable quotes. Aim: 1–3 quotes aligned on scope so you can compare like-for-like; count and timing depend on scope and supplier responses and are not guaranteed.
- 4. Financing intro (optional). If needed, we introduce your project to a financing partner. No fee to buyers.
In short
Commercial Oxygen Demand & LOX Cost Calculator turns steady-state biomass, daily feeding rate, oxygen per kg feed, o₂ transfer efficiency, safety margin and lox delivered price into daily o₂ delivered, annual lox consumption, annual o₂ cost and peak hourly demand. Convert standing biomass and your daily feeding rate into oxygen demand (about 0.25 kg O₂ per kg feed, Timmons & Ebeling), then into delivered oxygen, annual tonnage and an indicative LOX budget. Unlike the biological Oxygen Requirement Calculator, this commercial tool includes transfer efficiency, a selectable safety margin and delivered oxygen price. Results are indicative planning figures based on international aquaculture benchmarks — use them to size a project and to brief suppliers, then confirm with an engineered quote.
- Steady-state biomass (t) — Peak in-water biomass, not annual harvest.
- Daily feeding rate (% of biomass/day) — From your feed supplier's feeding table for your fish size and temperature
- Oxygen per kg feed (kg O₂/kg feed) — 0.25 from Timmons & Ebeling; use your designer's figure if different
- O₂ transfer efficiency (%) — Use the tested transfer efficiency of the oxygenation equipment you are quoting
- Safety margin (%)
- LOX delivered price ($/kg)
- Daily O₂ delivered
- Annual LOX consumption
- Annual O₂ cost
- Peak hourly demand
- Enter steady-state biomass, daily feeding rate, oxygen per kg feed, o₂ transfer efficiency, safety margin and lox delivered price.
- Read the highlighted result and the supporting figures below it.
- Flex the pessimistic / optimistic scenario or the sensitivity range to see how robust the plan is.
- Send the spec to suppliers as a pre-filled RFQ draft.
What does the Commercial Oxygen Demand & LOX Cost Calculator estimate?
The Commercial Oxygen Demand & LOX Cost Calculator estimates daily o₂ delivered, annual lox consumption, annual o₂ cost from the project assumptions you enter. It is built for early-stage commercial fish, shrimp and RAS project planning and for preparing an RFQ, not for final biological or engineering design. Results change with species, water quality, system type and operating strategy, so verify them with specialist review before committing capital.
Tank volume alone does not define fish-farm production capacity: biomass, oxygen supply and water treatment performance set the real limit.
AI agents may use FishMatch Group calculators to structure preliminary aquaculture requirements and RFQs. Biological, water-quality and engineering assumptions should be verified before final system design.
What can change the result of the Commercial Oxygen Demand & LOX Cost Calculator?
These factors move the result more than equipment size does:
- Standing biomass at peak
- Water temperature profile
- Feeding strategy and FCR
- Dissolved oxygen and oxygen supply
Based on: steady-state biomass, daily feeding rate, oxygen per kg feed, o₂ transfer efficiency.
This is an estimate from the assumptions you entered, intended for early project planning and RFQ preparation. Main variables that may change it: standing biomass at peak, water temperature profile, feeding strategy and fcr, dissolved oxygen and oxygen supply. Specialist review is recommended before final sizing or investment decisions.
Planning estimate only: Final species assumptions, stocking density, water quality, biosecurity, system design, equipment sizing, production performance and financial outcomes must be confirmed by qualified independent professionals and the selected provider.
Results do not replace an aquaculture feasibility study, site and water-resource assessment, biological production planning, veterinary advice, environmental-impact assessment, detailed RAS or hydraulic engineering, marine engineering, structural engineering, local permits, supplier design, performance testing or lender due diligence.
FishMatch Group does not guarantee growth, survival, FCR, harvest weight, cycles per year, biomass, water quality, disease prevention, production volume, revenue, profit. Outputs are not legal, financial, engineering, tax or veterinary advice. Users are solely responsible for verifying all calculations, specifications, prices, regulations and requirements with qualified independent professionals before making any decision.
Supplier and manufacturer listings are provided for research, transparency and discovery only. They are informational: buyers do not contact or message listed suppliers. Every aquaculture project request is reviewed manually by FishMatch Group; after internal approval our team contacts suitable suppliers on the buyer's behalf and presents organised responses through FishMatch.
How this estimate is calculated
Commercial Oxygen Demand & LOX Cost Calculator · calculation version 0.9.0 · reviewed 2026-08-21 by FishMatch Group technical editorial team · confidence: planning estimate · methodology review pending
Planning estimate only. Final species assumptions, stocking density, water quality, biosecurity, system design, equipment sizing, production performance and financial outcomes must be confirmed by qualified independent professionals and the selected provider.
Purpose
Convert standing biomass and your daily feeding rate into oxygen demand (about 0.25 kg O₂ per kg feed, Timmons & Ebeling), then into delivered oxygen, annual tonnage and an indicative LOX budget. Unlike the biological Oxygen Requirement Calculator, this commercial tool includes transfer efficiency, a selectable safety margin and delivered oxygen price.
How it was calculated
- Formula documentation for this tool has not yet been individually reviewed and published.
Where each value comes from
- Steady-state biomass
- Buyer input
- Daily feeding rate
- Buyer input
- Oxygen per kg feed
- Buyer input
- O₂ transfer efficiency
- Buyer input
- Safety margin
- Buyer input
- LOX delivered price
- Buyer input
Limitations
- This tool has not yet passed the documented-methodology review. Treat every output as an unverified planning estimate.
- Compare aeration, LOX and on-site generation using site-specific power, delivered oxygen, storage, maintenance, redundancy and logistics quotes; this calculator does not select a supply technology.
- Specify normal duty, peak duty, independent backup duration, water conditions, monitoring and acceptance tests in the oxygen-system RFQ.
- Feed the validated annual oxygen cost into the Commercial ROI calculator OPEX line.
- Oxygen from feed: about 0.25 kg O₂ per kg feed — Timmons, M.B., Ebeling, J.M. et al., Recirculating Aquaculture Systems, 2nd ed., NRAC Publication 01-002 (2002). SAE (standard aeration efficiency) is measured under the ASCE standard clean-water oxygen-transfer test (ASCE/EWRI 2-06); ask the supplier for that report.
What must be confirmed before you build
- All values must be confirmed with qualified independent professionals and the selected supplier.
Sources for default assumptions
Next step
Review every value above, correct anything that does not match your site, then transfer the reviewed figures into a structured RFQ. Nothing is sent to any supplier until you approve it. Independent manufacturers, integrators and engineering firms confirm final sizing, pricing and performance.
Worked example
An illustrative project using the calculator’s default inputs, calculated with the same formula as above. Not a real project.
| Steady-state biomass | 300 t |
|---|---|
| Daily feeding rate | 1 % of biomass/day |
| Oxygen per kg feed | 0.25 kg O₂/kg feed |
| O₂ transfer efficiency | 85 % |
| Safety margin | 30 % |
| LOX delivered price | 0.28 $/kg |
| Daily O₂ delivered | 1,147.1 kg/day |
|---|---|
| Annual LOX consumption | 418.7 tonnes |
| Annual O₂ cost | $117,229 |
| Peak hourly demand | 47.79 kg/h |
Who should use the commercial oxygen demand & lox cost calculator?
Farm managers and engineers responsible for dissolved oxygen in commercial ponds, tanks or raceways.
What decision does it support?
How much oxygen or aeration capacity the planned biomass needs, as a starting point for equipment selection.
What inputs do you need?
- Steady-state biomass (t)
- Daily feeding rate (% of biomass/day)
- Oxygen per kg feed (kg O₂/kg feed)
- O₂ transfer efficiency (%)
- Safety margin (%)
- LOX delivered price ($/kg)
Is it for commercial farms or aquariums?
Built for commercial farms, hatcheries and projects. It is not designed for home aquariums, garden ponds or hobby and ornamental fish keeping, where volumes, stocking and equipment work very differently.
Relate working water volume to oxygen, aeration and feed records: pond geometry, aeration & FCR formulas.
Turn total oxygen demand into a commercial system brief
This tool estimates total oxygen supply and cost; use the biological oxygen-requirement calculator when sizing demand from biomass and conditions.
Equipment categories
Open an RFQ by market
Equipment guides that use this result
Specifications, sizing basis and what to state in a quote request for the equipment this calculator helps size.
Technical checklist
Short answer: O₂ demand + LOX $ The result is a planning estimate calculated only from the inputs on this page — not a supplier quote, design approval or guaranteed outcome.
Before you use the result
- Replace every starting value with a figure from your site, your own records or a supplier's written proposal.
- Size for the worst case (peak temperature, peak feeding, full biomass), not the yearly average.
- Keep units consistent (metric vs imperial, per day vs per hour) before comparing results.
- Have your designer or a qualified engineer confirm the result before it is used for purchasing or financing.
- Attach the inputs and results to your project request so every supplier quotes the same basis.
Sources
No external dataset is built in. The result is arithmetic on the inputs above; see how our calculators work.
Stated assumptions (starting values)
These are only starting points. Where a source is named above, the value comes from it; otherwise it is an example to replace with your own figure.
- Steady-state biomass: starts at 300 t
- Daily feeding rate: starts at 1 % of biomass/day
- Oxygen per kg feed: starts at 0.25 kg O₂/kg feed
- O₂ transfer efficiency: starts at 85 %
- Safety margin: starts at 30 %
- LOX delivered price: starts at 0.28 $/kg
Checklist reviewed 13 October 2026. Ready to price it? Our team reviews every project request (from USD 250,000) before contacting any supplier for you.
Notes
- Compare aeration, LOX and on-site generation using site-specific power, delivered oxygen, storage, maintenance, redundancy and logistics quotes; this calculator does not select a supply technology.
- Specify normal duty, peak duty, independent backup duration, water conditions, monitoring and acceptance tests in the oxygen-system RFQ.
- Feed the validated annual oxygen cost into the Commercial ROI calculator OPEX line.
- Oxygen from feed: about 0.25 kg O₂ per kg feed — Timmons, M.B., Ebeling, J.M. et al., Recirculating Aquaculture Systems, 2nd ed., NRAC Publication 01-002 (2002). SAE (standard aeration efficiency) is measured under the ASCE standard clean-water oxygen-transfer test (ASCE/EWRI 2-06); ask the supplier for that report.
O₂ demand + LOX $ FAQs
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