Lenders consider a wide variety of factors when setting your mortgagte interest rate, including your credit, loan term, down payment, the price of the home, whether it's a fixed or adjustable rate mortgage, and the loan type.   Using a mortgage calculator will provide you with an estimated monthly mortgage payment.

1.  Credit Score - Your credit score is based on your credit and tells lenders how "safe" of a borrower you are.  The most commonly used credit score is FICO and ranges from 300 - 850.  The higher your credit score, the better chance you have to qualify for a lower interest rate.  

2. Home Price and Loan Amount - The more money you need to borrow for your loan, the higher the interest rate will be. Lenders take a risk when loaning money