Skip to content
Contania

Refinance Calculator

Refinancing swaps your current loan for a new one — usually to get a lower rate or payment. Compare payments, see how long the closing costs take to pay for themselves, and check the total cost before you commit.

Your numbers

$
% / year
%
years
% / year
%
years
$

Typically 2-5% of the loan amount.

Result

New monthly payment
$1,398.53
Monthly savings
$334.27
Break-even on closing costsmonths
18
Total savings until payoffNegative means the new loan costs more over its life.
$10,369.79
Current loan vs. refinanced loan
ItemCurrentRefinanced
Monthly payment$1732.80$1398.53
Months remaining300360
Interest rate7%/year5.5%/year
Total cost until payoff$519841.22$509471.43

The two numbers that decide a refinance

First, the break-even point: closing costs divided by the monthly savings. If refinancing costs $6,000 and saves $250 a month, you break even in 24 months — it only makes sense if you'll keep the loan (and the house) longer than that. Second, the total cost until payoff: a lower payment over a *longer* term can still cost more in the end.

Watch the term reset

Refinancing 25 remaining years into a new 30-year loan restarts the clock: the payment drops both because the rate is lower *and* because you're stretching the debt over more years — and those extra years accrue interest. To capture the rate without the stretch, consider matching the remaining term (e.g., a 20- or 25-year refi) or keep paying the old payment amount on the new loan.

When refinancing makes sense

The classic triggers: your rate is meaningfully above market (a common rule of thumb is at least 0.5-1 point lower), your credit improved since the original loan, you want to drop PMI after building equity, or you're switching from an adjustable to a fixed rate. Get quotes from more than one lender — closing costs and rates vary widely for the same borrower.

Informational and educational result. Not a substitute for professional advice.

Frequently asked questions

Sources

Embed this calculator

Copy the code and paste it into your site or blog. Credit with a link back to Contania is included, and the height adjusts itself.

<iframe src="https://contania.app/embed/finance/refinance" title="Refinance Calculator — monthly savings and break-even" width="100%" height="720" loading="lazy" style="border:1px solid #e5e0d8;border-radius:12px;max-width:640px"></iframe>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.type==="contania:embed-height"){var f=document.querySelector('iframe[src="https://contania.app/embed/finance/refinance"]');if(f){f.style.height=e.data.height+"px"}}});</script>

Related articles

Related calculators

Finance

Mortgage

Calculate your monthly mortgage payment from the home price, down payment, interest rate and term — and see the full amortization: how much you pay in interest and how slowly the balance falls.

Calculate
Finance

Amortization

Build a full amortization schedule for any fixed-rate loan. See the year-by-year split of interest and principal, the balance remaining and the total interest paid.

Calculate
Finance

Down Payment

See how much cash a down payment takes at any percentage, the loan it leaves, the monthly payment — and whether PMI is likely below 20% down.

Calculate
Finance

Rent vs. Buy

Compare the monthly cost of buying a home — mortgage, property tax and maintenance — against renting, to see which is cheaper month to month.

Calculate
Finance

Retirement

Estimate the nest egg you will have at retirement from your current savings, monthly contribution and expected return — and the monthly income it could provide using the 4% rule.

Calculate
Finance

Savings

See how a savings account grows from a starting balance, monthly deposits and an annual rate (APY). Compare what you put in against the interest earned.

Calculate