Water Tank Calculator
Calculate tank volume from dimensions in any unit - or find the right tank size for your UAE property. Free tool by Khazzan.
How the Volume Calculator Works
Vertical Cylinder
Volume = π × (Diameter/2)² × Height
Horizontal Cylinder
Partial fill uses the circular segment formula: area = r²·arccos((r−h)/r) + (r−h)·√(2rh−h²), then × Length
Rectangular / Cuboid
Volume = Width × Depth × Height
Oval / Elliptical Cylinder
Volume = π × (Width/2) × (Height/2) × Length
All calculations use inner dimensions. Results are in net volume. Allow 10 - 15% headspace in practice for water expansion and maintenance access.
Quick Reference - Common Tank Sizes
| USG | Litres | m³ | Typical Use |
|---|---|---|---|
| 100 USG | 379 L | 0.38 m³ | Studio / 1-bed apartment |
| 200 USG | 757 L | 0.76 m³ | 2 - 3 bed apartment |
| 300 USG | 1,136 L | 1.14 m³ | Small villa |
| 500 USG | 1,893 L | 1.89 m³ | 3 - 4 bed villa |
| 1,000 USG | 3,785 L | 3.79 m³ | Large villa / townhouse |
| 2,000 USG | 7,571 L | 7.57 m³ | Commercial building |
| 3,000 USG | 11,356 L | 11.36 m³ | Hotel / school |
| 6,000 USG | 22,712 L | 22.71 m³ | Labour camp / factory |
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