1-Inputs: Spanish mortgage calculators typically require you to enter information such as the amount you want to borrow, the interest rate, and the repayment term. Some calculators may also ask for additional information, such as the type of property you are buying, the location of the property, and your financial situation.

2-Accuracy: Spanish mortgage calculators are designed to give you a rough estimate of your mortgage costs. They do not take into account all of the factors that may impact the cost of your mortgage, such as taxes, fees, and other charges. The results from a Spanish mortgage calculator should be used as a guide only and not as a definitive answer.

3-Repayment terms: Spanish mortgage calculators typically allow you to choose the repayment term for your mortgage, with options ranging from 10-30 years. This gives you the flexibility to find a repayment term that suits your financial situation and your long-term goals.

4-Interest rates: Spanish mortgage calculators allow you to enter the interest rate for your mortgage, which can be fixed or variable. The interest rate you enter will impact the estimate of your monthly repayments and the total cost of your mortgage.

5-Amortization: Spanish mortgage calculators typically use an amortization schedule to show how much of each repayment goes towards paying off the principal and how much goes towards paying interest. This can help you understand how your mortgage repayments change over time.

6-Additional costs: Spanish mortgage calculators may also allow you to enter additional costs, such as property transfer taxes, property registration fees, and mortgage registration fees. This can give you a more accurate estimate of the total cost of your mortgage.

A Spanish mortgage calculator is a valuable tool that can help you estimate the cost of your mortgage in Spain. It takes into account factors such as the amount you want to borrow, the interest rate, and the repayment term, to give you a rough estimate of your monthly repayments and the total cost of your mortgage. However, it is important to remember that the results from a Spanish mortgage calculator should be used as a guide only, and not as a definitive answer.