Water Volume Calculator
Calculate water volume, capacity, and flow rates for tanks, pools, and water systems. Perfect for water storage, irrigation, and plumbing calculations.
Water Volume Calculator
Water Volume Results
Enter dimensions to calculate water volume
Water Volume Information
Common Water Tanks
- • Rectangular: Easy to install, efficient use of space
- • Cylindrical: Strong structure, good for pressure
- • Spherical: Maximum strength, minimal surface area
- • Conical: Good for drainage, tapered design
Water Volume Applications
- • Storage Tanks: Water storage and supply
- • Swimming Pools: Pool volume calculations
- • Irrigation: Water system planning
- • Fire Safety: Fire suppression systems
About the Water Volume Calculator
Our free water volume calculator finds the volume of rectangular tanks, cylinders, and other shapes in litres and gallons. Enter dimensions to plan tanks, pools, and water storage. For full 3D shapes use our volume calculator; for pools and cylinders this tool gives quick water capacity.
You may also find our volume calculator useful.
Frequently Asked Questions
How do I calculate tank volume in litres?
Volume in cubic metres × 1000 = litres. For a cylinder, V = π × radius² × height. This calculator does it and shows litres and gallons.
What shape is my tank?
Rectangular tanks use length × width × height. Cylindrical (round) tanks use π × radius² × height. Select the shape that matches your tank.
How many gallons in a litre?
About 0.264 US gallons per litre. The calculator shows both litres and gallons for your volume.