Enter the design flow (gal/day) and the total area (ft^2) into the Loading Rate Calculator. The calculator will evaluate the Loading Rate.

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## Loading Rate Formula

The following two example problems outline the steps and information needed to calculate the Loading Rate.

LR = DF / A

- Where LR is the Loading Rate (gal/day/ft^2)
- DF is the design flow (gal/day)
- A is the total area (ft^2)

To calculate the loading rate, divide the design flow by the total area.

## How to Calculate Loading Rate?

The following example problems outline how to calculate Loading Rate.

Example Problem #1:

- First, determine the design flow (gal/day).
- The design flow (gal/day) is given as: 1000.

- Next, determine the total area (ft^2).
- The total area (ft^2) is provided as: 20.

- Finally, calculate the Loading Rate using the equation above:

LR = DF / A

The values provided above are inserted into the equation below and computed.

LR = 1000 / 20 = 50 (gal/day/ft^2)

Example Problem #2:** **

For this problem, the variables required are provided below:

design flow (gal/day) = 600

total area (ft^2) = 10

Test your knowledge using the equation and check your answer with the calculator..

LR = DF / A** = ?**