Free Refinance Calculator
Compare your current loan with a refinance to find monthly savings and the break-even point.
It calculates the payment on your remaining balance and term, and the payment on a new loan at the new rate and term, with closing costs either paid upfront or added to the loan. Break-even is the closing cost divided by the monthly saving, and the lifetime difference compares total remaining cost of each loan.
How to use the Refinance Calculator
- Enter the amount, interest rate and term. Pick your country at the top so the currency matches.
- Compare the monthly payment, total interest and payoff date in the result.
- Change one number at a time, such as a higher payment, to see what it saves.
About the Refinance Calculator
Compare your current loan with a refinance to find monthly savings and the break-even point.
Borrowing is easier to judge once you can see the real cost: the monthly payment, the total interest and how long it takes to be free of the debt.
Getting started with the Refinance Calculator
Using the refinance calculator takes a minute or two. Your entries are saved in this browser, so you can come back later and carry on.
Tips for better results
A lower payment can still cost more overall if you restart a long term, so check the lifetime difference as well. Refinance only if you expect to keep the loan beyond the break-even time.
Compare offers using the total cost, not just the monthly payment.
Even a small extra payment each month can shorten the term noticeably.
Privacy and where your data goes
Everything you type into the refinance calculator stays on your own device. Zapxa does not receive your numbers or documents. If you clear your browser data, your saved entries will be removed, so download a PDF of anything you want to keep.
Frequently asked questions
What does break-even mean here?
It is how many months of lower payments it takes to recover the closing costs. If you sell or refinance again before then, you lose money.
Why might lifetime cost go up with a lower rate?
Starting a new 30-year term stretches the repayment, so you pay interest for longer even at a lower rate. Choosing a term close to your remaining time avoids this.
Is the refinance calculator free?
Yes. It is free to use with no signup, no watermark and no usage limits.
Is my data private?
Yes. Your inputs are processed in your browser and saved only in its local storage. They are not uploaded to our servers.
Does it work on mobile?
Yes. Zapxa works on phones, tablets and desktops. Use the print button or download a PDF to keep a copy.
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