Formula: L x W x D *** Cubic ft x 7.47 
Volume of a Square or Rectangular Tank Please enter the data for length, width & side water depth. 
Formula: 3.1417 x R² x D **** Cubic ft x 7.47 
Volume of a Round Tank or Circulating Pipe

Disclaimer:  
These calculation are approximate and
Biohydronic, Inc. is not responsible for the accuracy.
