Enter the discharge rate (m^3/s) and the area (m^2) into the Calculator. The calculator will evaluate the Overflow Flow Rate.

## Overflow Flow Rate Formula

OFR = DR / A

Variables:

- OFR is the Overflow Flow Rate (m/s)
- DR is the discharge rate (m^3/s)
- A is the area (m^2)

To calculate Overflow Flow Rate, divide the discharge rate by the total area.

## How to Calculate Overflow Flow Rate?

The following steps outline how to calculate the Overflow Flow Rate.

- First, determine the discharge rate (m^3/s).
- Next, determine the area (m^2).
- Next, gather the formula from above = OFR = DR / A.
- Finally, calculate the Overflow Flow Rate.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

discharge rate (m^3/s) = 78

area (m^2) = 20