Use this free calculator to estimate rectangular or cylindrical tank capacity in litres. Enter your measurements and keep the material and wastage settings visible.
Enter your details
Every input includes a simple explanation.
Private: the calculation runs in your browser. Your inputs are not sent to GharGanit.
Real site dimensions and workmanship affect the quantity.
Transport, cutting, pattern and breakage affect how much extra material to order.
This is an early quantity estimate. Site conditions, drawings, product details and workmanship can change the final requirement.
Internal length, width and depth are converted from cubic metres to litres, describing geometric capacity rather than usable storage.
Use internal dimensions and account for freeboard, overflow level, sediment space and inaccessible residual water.
External tank dimensions include wall thickness and can overstate the volume actually available for water.
Use this calculator only for an early quantity estimate. A qualified civil or structural engineer must decide the final structure, reinforcement and safety details.
Rectangular volume = L × W × D; cylinder = π × (diameter/2)² × depth
Use internal dimensions and account for freeboard, overflow level, sediment space and inaccessible residual water.
External tank dimensions include wall thickness and can overstate the volume actually available for water.
This is an early quantity estimate. Site conditions, drawings, product details and workmanship can change the final requirement.