Runoff Volume Calculator

Calculate Runoff Volume



Formula

The formula to calculate the Runoff Volume (RV) is:

\[ RV = \frac{RA \times RF}{12 \times 7.481} \]

Where:

Definitions

Example

Let's say the total runoff area (RA) is 1000 ft2 and the total inches of rainfall (RF) is 2 inches. Using the formula:

\[ RV = \frac{1000 \times 2}{12 \times 7.481} \]

We get:

\[ RV \approx 22.32 \text{ gallons} \]

So, the runoff volume is approximately 22.32 gallons.