External Water Pumps
Choosing the right water pump for your pond can make all of the difference in the world. Just because a pump may cost less to buy, it is not always the way to go.

The most important thing to remember is the electrical usage when looking for a water pump for your pond. In order to maintain a healthy environment for your Koi pond or water garden, you MUST run your water pump through your filter 24 hours a day, 7 days a week.

So it is important to pick the right water pump for your Koi pond or water garden. Water pumps have variances in electrical usage and electrical costs.

The following formula will assist you in determining how much you will spend (approximately) per month to run the pump you select.

Formula:

  • Amps x Volts = Watts
  • Watts x 744 and divide by 1000 = KWH per month
  • KWH per month x Cost per KWH (located on your electric bill) = Cost per month

Or feel free to use our handy calculator below.
Pump Operational Cost Calculator

Calculate the cost
to operate a pump:

  1. Choose your voltage.

  2. Enter the amps of your pump

  3. Enter the Cost per KWH (located on your electric bill).

The Calculator will display the wattage and usage costs for you.
115 Volts (U.S.) 230 Volts (Europe)
Enter Amps:
Cost Per Kwh:

Your Results
Power Consumption Watts
Cost to Operate per month

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