---
title: "Tank Calculator"
canonical: "https://help.innovyze.com/space/infodrainage2021v1/16548353/Tank%20Calculator"
format: markdown
---
Provides a method to calculate the volume of the Retention or Detention part of a single Rainwater Tank

### <u>Width/Diameter</u>

Enter the diameter of a circular tank or the base width of a rectangular tank.

### <u>Length</u>

Enter the length of a rectangular tank.

### <u>Height</u>

Enter the height of the tank.

### <u>Volume</u>

Shows the volume of the tank using the dimensions entered.

### <u>Initial Depth</u>

Enter the depth of water in the tank at the beginning of analysis.

### <u>Initial Volume Used</u>

Shows the volume of the tank used at the beginning of analysis using the dimensions entered.