MORTGAGE CALCULATOR

How much time and interest could extra mortgage payments change?

Compare your current amortization path with monthly, annual or lump-sum extra payments, then see the time and interest difference under the same loan assumptions.

  • Instant result
  • No bank login
  • Runs in your browser
Extra-payment scenario
$
%
$
$
$

Principal and interest only. Taxes, insurance, PMI, escrow changes, prepayment rules and lender-specific timing are not modeled.

Illustrative payoff with your extra payments

21 yrs 2 mo

Under these assumptions, the extra-payment path pays off in about 21 yrs 2 mo versus 27 yrs on the base schedule.

Base principal + interest
$2,294.44/mo
Time saved
5 yrs 10 mo
Interest saved
$99,600

Base vs. extra-payment path

Base schedule
No extra payments
$393,399 interest
Your extra-payment scenario
$250/mo extra
$293,800 interest

Unlock payoff scenarios

Compare several monthly extra payment amounts and see the declining balance by year.

A mortgage affects more than a payoff date.

WealthNX can help place housing debt beside cash flow, net worth and other accounts so the user sees how one liability fits into the broader picture.

Explore WealthNX

Educational illustration only. Assumptions are user-entered and results are not predictions or financial, tax, legal or investment advice.

Your Financial clarity starts here

Connect accounts, track net worth, analyze stock, crypto and get clear insights with AI, all in one place.

WealthNX app screens: Clear AI Answers, Crypto Insights, Track Net Worth, Analyze Stocks, Connect Accounts