Round Tank Volume Calculator
Calculator inputs
Results
Working volume
42,412 liters
Surface area
28.3 m²
Turnover time
42.4 min
Results at a glance
| Output | Value |
|---|---|
| Working volume | 42.4 m³42,412 liters |
| Surface area | 28.3 m² |
| Turnover time | 42.4 min1.41 exchanges/hour |
Result summary with the inputs used
Inputs used
- Inside diameter
- 6 m
- Water depth
- 1.5 m
- Recirculation flow
- 60 m³/h
Results
- Working volume
- 42.4 m³
- Surface area
- 28.3 m²
- Turnover time
- 42.4 min
42,412 liters
1.41 exchanges/hour
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.
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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.
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- 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
Round Tank Volume Calculator turns inside diameter, water depth and recirculation flow into working volume, surface area and turnover time. Circular tanks are the workhorse of RAS, hatcheries and shrimp nursery systems. Working volume drives oxygen sizing, biofilter load and turnover — get this right before sizing pumps or filtration. 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.
- Inside diameter (m)
- Water depth (m)
- Recirculation flow (m³/h)
- Working volume
- Surface area
- Turnover time
- Enter inside diameter, water depth and recirculation flow.
- 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 Round Tank Volume Calculator estimate?
The Round Tank Volume Calculator estimates working volume, surface area, turnover time 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 Round Tank Volume Calculator?
These factors move the result more than equipment size does:
- Stocking assumptions and density
- System type (RAS, pond, cage, tank)
- Water quality limits (TAN, CO₂, solids)
Based on: inside diameter, water depth, recirculation flow.
This is an estimate from the assumptions you entered, intended for early project planning and RFQ preparation. Main variables that may change it: stocking assumptions and density, system type (ras, pond, cage, tank), water quality limits (tan, co₂, solids). 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
Tank Volume Calculator · calculation version 3.0.0 · reviewed 2026-08-21 by FishMatch Group technical editorial team · confidence: high
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 circular or rectangular tank dimensions into water volume at working depth.
How it was calculated
- Circular: volume_m3 = π × (diameter_m ÷ 2)² × water_depth_m
- Rectangular: volume_m3 = length × width × water_depth
Where each value comes from
- Diameter
- Buyer input
- Water depth
- Buyer input
What the outputs mean
- Working water volume
- Volume in litres and US gallons
Engineering assumptions
- Water depth, not tank wall height, is used — freeboard is excluded.
Limitations
- Conical or dual-drain bottom volumes are approximated by the cylindrical body.
What must be confirmed before you build
- Supplier tank drawing and actual working depth
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.
| Inside diameter | 6 m |
|---|---|
| Water depth | 1.5 m |
| Recirculation flow | 60 m³/h |
| Working volume | 42.4 m³ |
|---|---|
| Surface area | 28.3 m² |
| Turnover time | 42.4 min |
Who should use the round tank volume calculator?
Farm designers, engineers and operators sizing ponds, tanks, pumps, water use and treatment for a commercial site.
What decision does it support?
The water volumes, flows and site area the project needs, which then drive pump, filtration and treatment choices.
What inputs do you need?
- Inside diameter (m)
- Water depth (m)
- Recirculation flow (m³/h)
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.
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: Round tank volume 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.
- Inside diameter: starts at 6 m
- Water depth: starts at 1.5 m
- Recirculation flow: starts at 60 m³/h
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
- RAS best practice: 30–90 min turnover for finfish, 15–45 min for high-density systems.
- For dual-drain tanks, reduce working depth by 5–10% to account for the center-sump cone.
Round tank volume FAQs
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