I've found a lot of calculators that help you total up where your budget is going - how much the venue costs, the price of the dress, dinner, makeup, etc.
I've also found a lot of advice about not going over your budget.
What I *haven't* found, though, is any information or advice on how to decide how much your budget is.
Do you base it on a percent of your income? A percent of how much savings you have? The number of people?
How did you decide what was appropriate for you to spend?