Calculate energy consumption of household appliances DIY

Hello, First of all thank you for taking time to help me out.

(Long story further down)

I would like to be able to calculate the energy consumption of my household appliances, is it possible without using those gadgets you plug on the wall applet? Just using the information that comes with the appliance like the mAp or Kw(I don't actually remember what is the scale that usually comes with the appliances).

(Long story) I moved from my last apartment where I live with two other persons, where I and one other person had most of the day two high end pc's turned for long periods of time, and specially now at winter we would have heaters as well, to my grandmother's, where there's no high-end pc, no heaters beside a couple of hours at night some days of the week. Now, here the price of electricity should be somewhat the same price but here I'm paying double or triple of electricity. Since the house is big, my grandparents have separated the house and they rent another half to a person, which isn't even home everyday.

So, there should be 2 clothe washing machines, 2 small refrigerators(with freezer), maybe 2 small heaters(oil), two tvs turned on 2-4 hours a day, 4 mobiles charging but only two every night, and my netbook charging every odd day(sorry, I'm not English and I don't remember the right way to say it).

So from paying 50€ of electricity(each month) we started paying 160€.

Where I live, you can give the government the amount of electricity you have spent so that the government doesn't have to make an estimative(which usually if comes more expensive than it should) , and where I'm currently living we haven't "given" the electricity amount in some time, but I still would like to know how much we're spending to see it the money we're paying is justified. So can I calculate the amount of energy my household appliances spend without using other gadgets and using only the info that come with the appliances(though I expect the numbers are on ideal conditions)?

Submitted December 20, 2014 at 08:14PM by jgorgulhosantos http://ift.tt/1GDWG1K DIY