This Calculator of Mortgage can be used to calculate the monthly payments of a house mortgage loan, based on the sale price, the term of the loan desired, the percentage of cash payment of the buyer, and the interest rate of the loan. These factors of calculation in PMI (Sure of Private Mortgage) for loans where less than the 20% is position like a cash payment. Keep also in mind that are the taxes on hereditary broadcasts of city, and its effect on the total of the payment of the mortgage monthly.