A quick Google search on Household Budget Calculators turned up this site, which provides an Excel worksheet you can use to calculate your family budget. Combined with the other sites provided by others, it might help you to plan, track spending, etc.
Household Budget Calculator . I haven't tried it myself, so I'm not sure exactly what it offers.
There's a show that I enjoy watching, called Til Debt Do Us Part, that helps families get back on track with finances. The show has some really good hints about things you can do to track and cut spending.
One simple technique that I use to track my family's spending is the receipt jar. For a month at a time, I collect receipts for all spending in a big glass jar. If I don't get a receipt for something, I scribble the item, date, amount spent and store name on a scrap of paper and drop it in the jar too. At the end of the month, I review all of the receipts and tally up all of the discretionary spending.
To ensure that I am controlling the cash flow during Receipt Tracking month, I provide everyone with a weekly "allowance", not so much to restrict their spending, as to make sure that I know how much money is going where at any time. This way, even if someone forgets to get any receipts at all, I know that they started the week with $50 or whatever, and I can factor that in.
When I do this, it gives me a very clear picture of expenses that can be cut or eliminated altogether, and those that need to be kept. Those things that cannot be removed, go into the Monthly Fixed Expenses portion of the family budget, along with mortgage payments, car payments, Residential Treatment Center (RTC) fees and other things that must be paid no matter what.
Hope this helps,
Trinity