Pond Size Calculator

Pond size calculator calculates the size of your pond and how many gallons of water are needed for the pond.

Calculate Pond Size

Rectangular Pond Size

To calculate the rectangular pond size,
multiply the length, and width of the rectangle pond.

Area = Length x Width

Oval Pond Size


To calculate the oval pond size,
multiply π by the semi major axis, and the semi minor axis of the oval pond.

Area = π (Major Axis / 2) x (Minor Axis / 2)

Circle Pond Size

To calculate circle pond size,
multiply π, the square of the radius of the circle pond.

Area = π (Diameter / 2)²

Calculate Pond Volume

Calculate Rectangle Pond Volume

To calculate the rectangular pond volume,
multiply the length, width, and depth of the rectangular pond.

V = Length x Width x Depth

Calculate Oval Pond Volume

To calculate oval pond volume,
multiply π by the semi major axis, the semi minor axis and the depth of the oval pond.

V = π (Major Axis / 2) x (Minor Axis / 2) x Depth

Calculate Circle Pond Volume

To calculate circle pond volume,
multiply π, the square of the radius, and the depth of the circle pond.

V = π (Diameter / 2)² x Depth