Water Tank Capacity Calculator (Cylindrical)
Litres and gallons a round tank holds from its diameter and height — plus what it weighs full.
A common 1000 L overhead tank is ~1.1 m Ø × 1.4 m — and weighs a full tonne. Indian practice sizes domestic storage at 135 L/person/day (NBC); check the slab before upsizing.
Formula
Water Tank Capacity Calculator (Cylindrical) is a free water tank capacity calculator for civil engineers, contractors and quantity surveyors — 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 Water Tank Capacity Calculator (Cylindrical)
Litres and gallons a round tank holds from its diameter and height — plus what it weighs full. The calculation implements V = π(d/2)² × h × 1000 L/m³ (Geometry; NBC 2016 water demand norms). A common 1000 L overhead tank is ~1.1 m Ø × 1.4 m — and weighs a full tonne. Indian practice sizes domestic storage at 135 L/person/day (NBC); check the slab before upsizing.
How to use Water Tank Capacity Calculator (Cylindrical)
- 1Enter Tank diameter in m.
- 2Enter Tank height in m.
- 3Enter Fill level in %.
- 4Read Capacity, US gallons, Water weight instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Water Tank Capacity Calculator (Cylindrical)?
- ✓Implements the standard formula — V = π(d/2)² × h × 1000 L/m³
- ✓Reference cited on-page: Geometry; NBC 2016 water demand norms
- ✓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 Water Tank Capacity Calculator (Cylindrical) use?+
It computes V = π(d/2)² × h × 1000 L/m³, per Geometry; NBC 2016 water demand norms. 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?+
A common 1000 L overhead tank is ~1.1 m Ø × 1.4 m — and weighs a full tonne. Indian practice sizes domestic storage at 135 L/person/day (NBC); check the slab before upsizing.
Does it include wastage?+
Yes — standard wastage/bulking factors are built in and stated in the formula line, so the quantity is an orderable number, not a bare geometric volume.
Is the Water Tank Capacity Calculator (Cylindrical) 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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