Rectangular Tank Volume Calculator
Volume of rectangular tanks and sumps in litres, m³ and US gallons.
Underground sumps in India are commonly sized at 135 L/person/day × 1.5 days storage. Don't forget freeboard — usable depth is below the overflow.
Formula
Rectangular Tank Volume Calculator is a free rectangular tank volume for process, mechanical and water engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Rectangular Tank Volume Calculator
Volume of rectangular tanks and sumps in litres, m³ and US gallons. The calculation implements V = L × W × H (IS 1172 — water supply requirements). Underground sumps in India are commonly sized at 135 L/person/day × 1.5 days storage. Don't forget freeboard — usable depth is below the overflow.
How to use Rectangular Tank Volume Calculator
- 1Enter Length in m.
- 2Enter Width in m.
- 3Enter Water depth in m.
- 4Read Volume, Volume, Water weight instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Rectangular Tank Volume Calculator?
- ✓Implements the standard formula — V = L × W × H
- ✓Reference cited on-page: IS 1172 — water supply requirements
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Rectangular Tank Volume Calculator use?+
It computes V = L × W × H, per IS 1172 — water supply requirements. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Underground sumps in India are commonly sized at 135 L/person/day × 1.5 days storage. Don't forget freeboard — usable depth is below the overflow.
Does this work for any fluid?+
Yes — density and viscosity are inputs (with common fluids suggested in the field hints), so the same physics applies to water, oils, gases and process fluids. Compute always runs in SI internally, so unit mix-ups can't corrupt the result.
Is the Rectangular Tank Volume Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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