Enter the diameter of the lake (ft) and the average depth of the lake (ft) into the Lake Volume Calculator. The calculator will evaluate and display the Lake Volume.

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## Lake Volume Formula

The following formula is used to calculate the Lake Volume.

**LV = pi*D^2/4*LD /7.481**

- Where LV is the Lake Volume (gallons)
- D is the diameter of the lake (ft)
- lD is the average depth of the lake (ft)

## How to Calculate Lake Volume?

The following example problems outline how to calculate Lake Volume.

Example Problem #1:

- First, determine the diameter of the lake (ft).
- The diameter of the lake (ft) is given as: 500.

- Next, determine the average depth of the lake (ft).
- The average depth of the lake (ft) is provided as: 30.

- Finally, calculate the Lake Volume using the equation above:

LV = pi*D^2/4*LD /7.481

The values given above are inserted into the equation below:

LV = pi*500^2/4*30 /7.481 = 787,382.89 (gallons)

Example Problem #2:** **

The variables needed for this problem are provided below:

diameter of the lake (ft) = 600

average depth of the lake (ft) = 10

Entering these values and solving gives:

LV = pi*600^2/4*10 /7.481 = 377,948.58 (gallons)