is there a website where I can calculate the water needed to the brewing?

I used hopville for a while and now it is brewtoad and doesnt show the amount of needed water.

I have my recipe ready, but I need a website where I can calculate all the water I need. Including the boil-off rate...and different factors like that.

Any ideas?

NOTE: I have just found this site and changed all the data such as batch size, grain bill...etc..that are relevant and changed mash thickness to 1.5, and left the rest of the info as default. Am I safe with this? I dont understand all the variants.