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How do you calculate Ohms, Amps, Watts or Voltage?

wildweaselmi
in misc

Featured Replies

Sometimes I am in the need of figuring out how many amps a certain item will draw but all I am given is the Voltage and Wattage.



This link there is a calculator you can use to figure out two from two.



It's really as easy as:



Voltage (E) = Current (I) * Resistance ®


Power (watts) = Current Squared (I^2) * Resistance ®


Power = I*E = E^2 / R


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