WattCost

Fish Tank Pump Running Cost Calculator

Typical draw about 30 W. Enter your hours and rate to estimate the monthly and yearly running cost.

WattCost runs every calculation in your browser — your usage and rates never leave this page.
W
h
$/kWh

Try: Power (watts)=30, Hours per day=3, Days per month=30, Electricity rate=0.15 → 2.70 kWh, $0.40, $4.86

How to use

Enter the wattage (pre-filled to about 30 W, the typical draw for a Fish Tank Pump), set how many hours per day it runs, and add your electricity rate. WattCost multiplies watts ÷ 1000 × hours × days to get kWh, then multiplies by your rate for the cost.

Runs nonstop; a small pump is cheap, the heater is the bigger draw.

FAQ

How much does it cost to run a Fish Tank Pump per month?

At about 30 W, with 3 hours a day at $0.15/kWh, a Fish Tank Pump costs roughly $0.40 per month. Your real number depends on how many hours you use it and your local rate — enter your own figures for an exact estimate.

Does a Fish Tank Pump use power when it is off?

Most devices draw a small standby load. Unplug the Fish Tank Pump or put it on a switched outlet to stop the trickle when it is not in use.

How can I lower my Fish Tank Pump running cost?

Runs nonstop; a small pump is cheap, the heater is the bigger draw. You can also shop your electricity rate — even a small drop per kWh lowers every appliance on this site.

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