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Pond Calculator

Estimating Surface Area, Estimating your pond's water volume, Pond Liner Size, Pump Head Pressure, Pump Flow Rate, Pump Cost/Usage


Estimating Surface Area

(For irregular shapes use the average measurements for length and width)
Please enter all values in whole numbers or in decimal format. For example, use 1.5 feet for a foot and a half!

Square Pond

Average Length in feet:
Average Width in feet:
Estimated Surface Area:
sq ft.

Round Pond

Diameter, in feet:
Estimated surface area:
sq ft.

Estimating your pond's water volume

(For irregular shapes use the average measurements for length and width)
Please enter all values in whole numbers or in decimal format. For example, use 1.5 feet for a foot and a half!

Square Pond

Average Length in feet:
Average Width in feet:
Average Depth in feet:
Estimated water volume:
gallons.

Round Pond

Diameter, in feet:
Average Depth in feet:
Estimated water volume:
gallons.

Pond Liner Size

(For irregular shapes use the average measurements for length and width)
Please enter all values in whole numbers or in decimal format. For example, use 1.5 feet for a foot and a half!
Average Length in feet:
Average Width in feet:
Average Depth in feet:
Liner Length:
feet.
Liner Width:
feet.

Pump Head Pressure

For waterfalls and streams, you will want to consider the amount of pump head pressure (generally referred to on pump flow charts as "Head") that your system will have, in order to help you determine the correct pump size.
Total rise, in feet:
Hose length in feet:
Number of angled fittings & reducers:
Number of other adapters:
Pump head pressure:

Pump Flow Rate

You will want to size your pump to provide the water depth you're planning for your waterfall spillway and/or stream. Use this calculator to help you estimate the pump's flow rate (GPH) to achieve your desired flow..
Spillway Width in inches:
Spillway Depth in inchees:
Required GPH at spillway head:

Pump Cost/Usage

Pond pumps should run 24 hours a day to maintain your pond's ecosystem. To estimate what running your pump will cost each day, simply plug your pump's watt rating and your cost of a kw/hr into the calculator on the right.
Please enter all values in whole numbers or in decimal format. For example, use .09 for 9 cents!
Pump rating, in watts:
Electric cost per kw/hr:
Dollar cost per day: