Loan Overpayment Calculator

Wondering if paying a little extra each month is worth it? Enter your loan details and extra payment to see exactly how many years you shave off — and how many thousands in interest you save.

Your Results

Normal monthly payment
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New payoff time
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Total interest (no overpayment)
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Total interest (with overpayment)
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Interest saved
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Time saved
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How to use this calculator

  1. Enter your remaining loan amount and interest rate.
  2. Enter the original loan term in years.
  3. Enter how much extra you can pay each month, on top of the normal payment.
  4. Click Calculate to see your new payoff time and interest saved.
Surprising fact: On a typical 30-year loan, even $200 extra a month can cut roughly 9 years off the loan and save tens of thousands in interest. Try different extra amounts to find your sweet spot.

Frequently asked questions

How does loan overpayment work?

Any payment above your normal monthly amount goes straight to the loan balance, so less interest builds up afterwards. That shortens the loan and reduces total interest.

Is it better to overpay monthly or once a year?

Monthly overpayments usually save slightly more because the balance drops sooner, but any extra payment helps. The best schedule is the one you can stick to.

Do all loans allow overpayment without penalties?

No. Some lenders charge early repayment fees or limit overpayments. Always check your loan terms before making extra payments.

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