Free Mortgage Early Payoff & Extra Principal Calculator Online
Calculate how extra monthly, annual, or lump-sum principal payments shave years off your 30-year mortgage and save tens of thousands in interest. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
How It Works
Enter Mortgage Details
Input original balance, interest rate, and term (15 or 30 years).
Add Extra Payment
Enter extra monthly principal (e.g. $200/mo) or yearly bonus.
Compare Timelines
Inspect new payoff date and total interest saved.
Frequently Asked Questions
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