Is there a way to Calculate my power consumption? I want to see how much of my corsair RM750 PSU I'm actually using. I have seen a few webpages that seem to calculate it but are these accurate? can anyone recommend anything?
Also how much power do mouse, keyboard, and other peripherals use?
Current PC spec's (nothing is over-clocked)
Intel Core i7 3770 @ 3.40GHz Stock Intel CPU cooler
top would be 330-350 but what @MrChumps said you want to know it more accurately get a watt meter like the jaycar one. The situations where a lot of deviance occurs with those meters are more on the low end spectrum and then I mean <10 watt.
PC Part Picker seems pretty accurate. However that just shows the maximum power draw, to accurately work out your power draw at different load levels you need something like the kill a watt as suggested by @thedmbarlow