

Model your loan with *absolute precision*
Simulate amortization schedules, test biweekly acceleration, and calculate lifetime interest savings instantly with our privacy-first engine.


Amortization Simulator
Adjust the variables on the left to watch the amortization schedule and lifetime interest charts recalculate in real-time.
Loan Parameters
Impact Summary
Lifetime Balance
Principal Amount: $350,000
$1,824
Biweekly Payment
Interest Rate: 5.25% Fixed
Loan Term: 30 Years
$42,180
Interest Saved
Frequency: Biweekly Accelerated
4.2 Yrs
Term Saved
Extra Payment: $250 / month
Designed for serious planning
Accelerated Payoffs
Extra Principal Power
Zero-Friction Privacy
Model biweekly or weekly schedules to see exactly how minor frequency shifts slash your lifetime interest.
Inject custom monthly or one-off prepayments to calculate your precise loan freedom date.
No registration, no emails, and no tracking. Your financial models stay entirely inside your browser.
Amortization control starts here
Run the numbers with zero friction. Get instant, institutional-grade clarity on your liabilities and make smarter payoff decisions today.
