Yes, 100% free with unlimited calculations.

Are my calculations private?

Yes, all math runs entirely inside your browser client memory.

What does the Refinance Mortgage Calculator give me?

It works out New Monthly Payment, Monthly Savings, Breakeven Time and Lifetime Savings, updating live as you change the inputs.

What do I need to enter?

Just Remaining Loan Balance, Current Monthly Payment, New Refinance Rate, New Term and Refinance Closing Costs. Every field has a sensible default you can start from.

Is my data uploaded anywhere?

No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

Refinance Mortgage Calculator

Compare current mortgage vs refinance terms, monthly savings, and breakeven month.

100% free
Private in browser
No signup
No watermarks

Remaining Loan Balance ($)

Current Monthly Payment ($)

New Refinance Rate (%)

New Term (Years)

Refinance Closing Costs ($)

New Monthly Payment

$1419.47

Monthly Savings

$243.53

Breakeven Time

17 Months

Lifetime Savings

$83,670

Rate this tool

Be the first to rate — helps others and improves this page.

About Refinance Mortgage Calculator

Compare current mortgage vs refinance terms, monthly savings, and breakeven month.. Fast, free, client-side calculator on TheToolss.

How to use Refinance Mortgage Calculator

Open the tool in your browser
Enter your parameters
View calculated results instantly

Key features

100% free client-side tool
Instant calculation without page reloads
Zero data transmission to server
Responsive layout

Frequently asked questions

Is this tool free?: Yes, 100% free with unlimited calculations.
Are my calculations private?: Yes, all math runs entirely inside your browser client memory.
What does the Refinance Mortgage Calculator give me?: It works out New Monthly Payment, Monthly Savings, Breakeven Time and Lifetime Savings, updating live as you change the inputs.
What do I need to enter?: Just Remaining Loan Balance, Current Monthly Payment, New Refinance Rate, New Term and Refinance Closing Costs. Every field has a sensible default you can start from.
Is my data uploaded anywhere?: No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

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