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View Full Version : How to calculate watts vs amp.


delock
11/25/2001, 10:52 AM
Trying to figure out how much juice it take to run my tank.

Alexis
11/25/2001, 11:07 AM
watts = (amps)x(volts)

Vins Fins
11/25/2001, 11:17 AM
you need to know either two #'s to come up with the answer,

P=I x V watts are equal to volts times amps, most devices display the watts/ volts on them.

if your motor has the watts listed on the side then you can figure the amps I = P/ V , just divide the volts into the watts and you get the amp draw.

If you find out your total watts you can mutiply that # X 24 hrs in a day and then x an average of 30 days. this # gives you a total watt usage in one month, divide that # by 1000 to convert it to Kilo watts then Check your power bill to see how much you pay per KW, i pay around 10 cents per/KW. divide that number into your total tank KW reading and you get the average cost to run your system.

tomatoeclown
11/25/2001, 11:56 AM
add all the wattage and divide it by 110, thats how you get the amps, example(2x250watt MH=500watts divided by 110volts=4.5amps), anymore questions holer, cya.:D

tomatoeclown
11/25/2001, 11:58 AM
Vin why did you have to remind me of my electric bill, it is scary looking.