Volume Calculator
Work out the volume of common shapes and the capacity of water tanks and sumps in litres.
Runs in your browser. Nothing is uploaded Free, no sign-up Works on mobile
Measurements in
Volume
120 cubic ft
Capacity in litres
3,398.02
Cubic metres
3.398
Cubic feet
120
Total surface area
148 sq ft
1 cubic foot = 28.32 litres. 1 cubic metre = 1,000 litres.
How to use Volume Calculator
- Choose the shape.
- Choose the unit of your measurements.
- Enter the dimensions to see the volume, capacity in litres and surface area.
Frequently asked questions
How do I calculate water tank capacity in litres?
For a rectangular tank, multiply length × width × depth in feet and then multiply by 28.32. A 6 × 4 × 5 ft tank holds about 3,398 litres.
How do I find the volume of a cylinder?
V = π × r² × h, where r is the radius (half the diameter) and h is the height.
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