Mortgage & real estate

Mortgage Refinance Calculator

Compare your current mortgage with a new rate to see your monthly saving, when the closing costs pay back and the lifetime saving.

  • Free
  • No sign-up
  • Updated for 2026

Current vs new mortgage

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Enter your current and new mortgage details to see the savings.

Worked example

With these example inputs:

  • Mortgage balance$350,000
  • Current rate7%
  • Years left25 yr
  • New rate5.5%
  • New term25 yr
  • Closing costs$4,500

Monthly savings: $324

  • New payment$2,149
  • Current payment$2,474
  • Break-even1 yr 2 mo
  • Lifetime savings$92,826

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What this refinance calculator does

This calculator shows the effect of refinancing your mortgage. You enter your current loan and rate. You add the new rate and any costs. The tool then shows your new payment. It also reveals your monthly savings. You can find your break-even point. The result helps you decide whether to refinance.

What refinancing means

Refinancing replaces your loan with a new one. The new loan pays off the old one. You then repay the new loan instead. People often refinance for a lower rate. Others change the term or tap equity. It can lower your monthly payment. But it comes with its own costs.

Lowering your interest rate

A lower interest rate is the main draw. It cuts the cost of your loan. It can shrink your monthly payment. It also reduces the total interest paid. Even a small drop can help a lot. Rates depend on the market and your credit. Compare offers from several lenders.

The break-even point

Refinancing has upfront closing costs. The break-even point is when savings cover them. Before it, you have not gained yet. After it, the savings are real. A shorter break-even is better. It matters if you might move soon. The calculator finds this point for you.

Closing costs to consider

Refinancing is not free. You pay closing costs to set up the new loan. These can include fees and an appraisal. They often run to thousands of dollars. You can pay them upfront or roll them in. Rolling them in raises your balance. Always weigh them against the savings.

Shortening or extending the term

You can change the loan term when you refinance. A shorter term raises the payment. But it saves a lot of interest. A longer term lowers the payment. It also adds to the total interest. Match the term to your goals. Avoid resetting the clock without a reason.

Cash-out refinancing

A cash-out refinance taps your home equity. You borrow more than you owe. The difference comes to you as cash. This raises your loan and your payment. People use it for big expenses. But it puts more of your home at risk. Use it with real care.

How to use it

Enter your current balance and rate. Add the new rate and closing costs. Read your new payment and monthly savings. See the break-even point the tool shows. Then compare staying versus refinancing. Decide if the savings are worth it. Use it to guide a smart choice.

When refinancing makes sense

Refinancing makes sense in clear cases. It helps when rates have dropped enough. It helps when you will stay past break-even. It helps when your credit has improved. It can fund a goal through cash-out. But weigh the costs every time. The math must work in your favour.

Common mistakes to avoid

A common mistake is ignoring closing costs. They can erase your savings. Another is resetting to a long term. That can raise the total interest. Some refinance just before moving. Others chase a tiny rate drop. A careful check avoids these traps.

A final tip

Refinance only when the numbers work. Confirm your break-even point first. Make sure you will stay past it. Watch the term you choose carefully. Weigh closing costs against the savings. Review your credit before you apply. A smart refinance can save real money.

Frequently asked questions

When is refinancing worth it?

It often pays off if you will stay in the home past the break-even point, where the monthly saving has covered the closing costs.

Does a longer term reduce the benefit?

Resetting to a fresh long term lowers the payment but can add interest over time, so weigh the lifetime saving alongside the monthly saving.

What costs come with refinancing?

Closing costs, an appraisal and origination fees. Weigh them against the monthly savings before deciding.

What is the break-even point?

It is the number of months it takes for the savings to cover the upfront costs. After it, refinancing starts to pay off.

Will refinancing reset my loan term?

A new 30-year term restarts the clock, which can raise total interest even with a lower rate.