When does refinancing make sense?

When the monthly savings exceed the closing costs within a timeframe you plan to keep the home.

Why does a longer term cost more?

Spreading the balance over more years lowers the payment but adds interest, even at a lower rate.

Refinance Calculator | Tsinglin.tech

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Loan balance ($)

Current rate (%)

Years left

New rate (%)

New term

Closing costs ($)

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Check whether a lower mortgage rate outweighs the closing costs of refinancing. Free, no signup.

How to use Refinance Calculator

Open the toolNo signup and nothing to install; it works as soon as the page loads.
Set “Loan balance”
Set “Current rate”
Set “Years left”
Set “New rate”
Set “New term”
Set “Closing costs”
Read the resultChange any input and the result is recalculated immediately.

Worked example with the defaults

YOU LOSE · Refinancing costs more than it saves: $6,684

Nothing you enter leaves your device

All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.

That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.

What this tool does not do

Refinance Calculator only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.

It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.

Frequently Asked Questions

When does refinancing make sense?: When the monthly savings exceed the closing costs within a timeframe you plan to keep the home.
Why does a longer term cost more?: Spreading the balance over more years lowers the payment but adds interest, even at a lower rate.