Loan Calculator

Calculate monthly loan payments, total interest and amortization

What is it and how does it work?

A loan calculator works out what a loan or mortgage actually costs: the fixed monthly payment, the total interest you will pay over the life of the loan, and how the balance shrinks month by month. You enter the amount borrowed, the annual interest rate and the term in years, and it applies the standard amortization formula to turn those three numbers into a payment you can budget around. It answers the questions that decide whether a loan is affordable before you commit to one.

The insight a calculator makes visible is how interest dominates a long loan. Early payments are mostly interest and barely touch the principal, which is why a small change in the rate or term can swing the total cost by thousands. Seeing the amortization — the split between interest and principal each month — explains why paying a little extra early saves so much, and why a longer term lowers the monthly payment but raises the total paid. This tool computes it instantly in your browser, with nothing sent anywhere.

Common use cases

• Comparing mortgage offers: see how different rates or terms change the monthly payment and the total interest over the loan.
• Budgeting for a car or personal loan: find the monthly payment for an amount and term so you know if it fits your budget.
• Deciding on extra payments: understand from the amortization how much total interest you save by overpaying early.

Frequently asked questions

How is the monthly payment calculated?

It uses the standard amortization formula, which spreads the loan into equal monthly payments covering both interest and principal over the term. The rate and number of payments determine the fixed amount; this tool applies the formula so you do not have to.

Why is so much of my early payment interest?

Interest is charged on the outstanding balance, which is highest at the start, so early payments are mostly interest with little principal. As the balance falls, each payment chips away more principal — which is why overpaying early has an outsized effect on total cost.

Does a longer term make a loan cheaper?

It lowers the monthly payment but raises the total interest, because you borrow the money for longer. A shorter term costs more each month but far less overall. The calculator shows both numbers so you can weigh affordability against total cost.

Does it include taxes, insurance or fees?

The calculation covers principal and interest, the core of the loan. Real mortgages often add property tax, insurance and fees that raise the actual monthly outlay, so treat the result as the loan portion and add those separately for a full budget.

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