How mortgage payments work
Your monthly mortgage payment is typically split into principal and interest. Early in the loan, most of each payment goes to interest; over time, more goes to principal. A fixed-rate loan keeps the same P&I payment for the full term. Adding extra payments toward principal reduces the balance faster, shortens the loan, and lowers total interest paid.
Why use a mortgage calculator?
A mortgage calculator helps you compare loan scenarios before you buy or refinance. You can see how different down payments, interest rates, and terms change your monthly payment and total cost. Modeling extra payments shows how small additions (e.g. $100 or $200 per month) can cut years off your loan and save thousands in interest—useful for budgeting and deciding whether to pay down your mortgage faster.
More personal finance tools
The Money Maniac offers simple, free tools to help you make better money decisions. Explore our tools homepage for more calculators, and visit themoneymaniac.com for guides on budgeting, investing, and financial freedom.