Question: how to calculate water volume in a pond?
Answer: Here is an example using the rectangle pond. If you pond is 2.5m long and 1.2m wide and about 40cm deep, you would then do the following using the formula (W x L x average depth x 1000) 1.2 x 2.5 x 0.4 x 1000 = 1200 litres. When calculating the volume of a cylinder, R refers to the radius.