The use of a mortgage calculator helps borrowers with their decisions regarding what they an afford today, the value of interest rates on their decisions, how the terms impact housing costs and how much risk a borrower may be willing to assume.  The mortgage calculators lead to better informed decisions.
If you have enough equity in your property, you can refinance with a loan amount greater than your current mortgage.  You can use the money for home improvement, debt consolidation, or whatever else you would like.  This is a cash out refinance.  If you were to refinance and only pay off the existing mortgage and
A short-term, interim loan for financing the cost of construction. The lender advances funds to the builder at periodic intervals as work progresses.