If you can find a manual for your model it will have it under "capacities".
I have an aftermarket radiator so that doesn't apply to my car anymore. I just put some in, start the car and keep topping it off until it wont take anymore.
Once you start getting hot air from your heat vents inside the car and it is topped off, go for a drive and keep an eye on the temp gauge. Park and let it cool. Fill the overflow tank and top off the radiator one more time before driving. This is what I do.
The label on my coolant said to use at least a 50/50 mix. 70/30 antifreeze to water if it is super cold. Hope this helps.
Edit: Where are you form anyway Andy?