Horizontal Cylindrical Tank Volume Calculator
Partial-fill volume of a horizontal cylinder tank from dip level — fuel, water, oil.
Half depth ≠ half volume only at exactly 50% — at 25% depth a horizontal tank holds just ~20% of capacity. This is the dip-stick chart formula.
Formula
Horizontal Cylindrical Tank Volume Calculator is a free horizontal 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 Horizontal Cylindrical Tank Volume Calculator
Partial-fill volume of a horizontal cylinder tank from dip level — fuel, water, oil. The calculation implements V = L·[r²·cos⁻¹((r−h)/r) − (r−h)·√(2rh−h²)] (Perry's Handbook — partial volumes of horizontal cylinders). Half depth ≠ half volume only at exactly 50% — at 25% depth a horizontal tank holds just ~20% of capacity. This is the dip-stick chart formula.
How to use Horizontal Cylindrical Tank Volume Calculator
- 1Enter Tank diameter in m.
- 2Enter Tank length in m.
- 3Enter Liquid level (dip) in m.
- 4Read Liquid volume, Percent full, Full capacity instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Horizontal Cylindrical Tank Volume Calculator?
- ✓Implements the standard formula — V = L·[r²·cos⁻¹((r−h)/r) − (r−h)·√(2rh−h²)]
- ✓Reference cited on-page: Perry's Handbook — partial volumes of horizontal cylinders
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Horizontal Cylindrical Tank Volume Calculator use?+
It computes V = L·[r²·cos⁻¹((r−h)/r) − (r−h)·√(2rh−h²)], per Perry's Handbook — partial volumes of horizontal cylinders. The formula is displayed under the result.
What should I keep in mind when using this calculator?+
Half depth ≠ half volume only at exactly 50% — at 25% depth a horizontal tank holds just ~20% of capacity. This is the dip-stick chart formula.
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 Horizontal Cylindrical 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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