Calculation of power consumption

Hi, Does anyone know how to calculate the power consumption of aquarium equipment. Suppose, i have a 5 watt pump and the energy price is 0.2262 per KWH, how do I find out how much electricity does the pump consume in terms of $ per month?

PM me your email addr for a spreadsheet which I am using the current tariff at S$21.38 per kWh.

http://www.spower.com.sg/html/custom...s_frameset.htm

[trevally]

Originally Posted by Ryan Wong

Hi, Does anyone know how to calculate the power consumption of aquarium equipment. Suppose, i have a 5 watt pump and the energy price is 0.2262 per KWH, how do I find out how much electricity does the pump consume in terms of $ per month?

Assuming your 5w pump is running 24 hrs a day. Your electricity cost per month for the pump will be ((24 x 5 x 30)/1000) x 0.2262 ~= $0.82 per month.