Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

How to calculate how much house I can afford?
There is no simple way to calculate how much house any given person can afford. In the answer keshlam gave, several handy rules of thumb are mentioned that are used as common screening devices to reject loans, but in every case further review is required to approve any loan.  The 28% rule is the gold standard for estimating how much you can afford, but it is only an estimate; all the details (that you don't want to provide) are required to give you anything better than an estimate. In the spirit of JoeTaxpayer's answer I'm going to give you a number that you can multiply your gross income by for a good estimate, but my estimate is based on a 15 year mortgage. Assuming a 15 year mortgage with a 3% interest rate, it will cost $690.58 per $100,000 borrowed. So to take those numbers and wrap it up in a bow, you can multiply your income by 3.38 and have the amount of mortgage that most people can afford. If you have a down-payment saved add it to the number above for the total price of the home you can buy after closing costs are added in. Property taxes and insurance rates vary widely, and those are often rolled into the mortgage payment to be paid from an escrow account, banks may consider all of these factors in their calculators but they may not be transparent. If you can't afford to pay it in 15 years, you really can't afford it. Compare the same $100k loan: In 30 years at 4% you pay about $477/month with a total of about $72k in interest over the life of the loan. In 15 years at 3% you pay about $691/month but the total interest is only $24k, and you are out of the loan in half of the time. The equity earned in the first 5 years is also signficantly different with 28.5% for the 15 year loan vs. 9.5% on the 30 year loan.  Without straying too far into general economics, 15 year loans would also have averted the mortgage crisis of 2008, because more people would have had enough equity that they wouldn't have walked out on their homes when there was a price correction.