Refinance Calculator

Compare your current loan with a refinance loan to estimate monthly payment savings, total interest savings, and how long it may take to recover refinancing costs.

Results

Current Monthly Payment
$0
New Monthly Payment
$0
Monthly Savings
$0
Current Total Interest
$0
New Total Interest + Costs
$0
Break-Even Time
0 mo

Enter your loan details and click Calculate to compare your current loan with a refinance scenario.

How this refinance calculator works

This refinance calculator compares your current loan with a new refinance loan using your remaining balance, current rate, remaining term, new interest rate, new term, and estimated closing costs.

It shows your current monthly payment, your estimated new payment, monthly savings, total interest comparison, and the estimated break-even point where monthly savings offset refinance costs.

What to enter

  • Your current remaining loan balance
  • Your current interest rate
  • Your remaining loan term in years
  • Your new refinance interest rate
  • Your new refinance term in years
  • Your expected closing costs

What the results mean

  • Current Monthly Payment: estimated payment on your existing loan
  • New Monthly Payment: estimated payment after refinancing
  • Monthly Savings: payment difference between the two loans
  • Break-Even Time: how long it may take for monthly savings to cover closing costs
  • Total Interest Comparison: estimated lifetime borrowing cost under each option

Refinance calculator formula

Monthly loan payments are calculated using the standard amortizing loan formula:

M = P × [r(1 + r)n] / [(1 + r)n - 1]

Where:

Break-even time is estimated with:

Break-Even Months = Closing Costs / Monthly Savings

Tips for using a refinance calculator

Look beyond the rate

A lower interest rate can help, but refinance costs and a longer term can reduce or delay the benefit.

Check the break-even point

If you may move or sell before reaching break-even, refinancing may not save as much as it first appears.

Watch the new term length

Resetting to a longer loan term can lower the monthly payment but may increase the total interest paid over time.

Compare total cost

It is important to compare both the monthly payment and the total long-term cost, including closing costs.

Frequently asked questions

When does refinancing make sense?

Refinancing may make sense when you can lower your interest rate, reduce your monthly payment, shorten your term, or achieve another goal that offsets the refinance costs.

What is the break-even point for refinancing?

The break-even point is how long it takes for your monthly savings to recover the upfront closing costs of the refinance.

Can refinancing increase total interest?

Yes. Even with a lower rate, extending the loan term can sometimes increase the total interest paid over the full life of the new loan.

Does this calculator include taxes or escrow?

No. This refinance calculator estimates principal and interest only. Taxes, insurance, HOA dues, and escrow costs are not included.

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