Loan Payment Calculator
If you have a loan, even small extra payments can significantly reduce how much interest you pay. This loan calculator shows your monthly payment, total interest, and how much faster you can pay off your loan by adding extra monthly payments.
Estimated monthly payment
$0.00
With extra monthly payment
No additional savings without extra payments.
Amortization Schedule
Compare your original repayment schedule with an accelerated payoff using extra monthly payments.
Showing standard repayment schedule.
| Month | Payment | Principal | Interest | Balance |
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How this loan calculator works
This calculator estimates your monthly loan payment using a standard fixed-rate amortization formula. It shows how much you will pay each month, how much of your payment goes toward interest, and how much reduces your principal over time.
You can also add an extra monthly payment to see how it affects your payoff timeline. Even small additional payments can significantly reduce total interest and shorten the life of your loan.
Results do not include taxes, insurance, origination fees, or other loan-specific charges.
How extra payments reduce your loan
When you make extra payments, more of your money goes directly toward the principal balance. This reduces the amount of interest charged in future months, which accelerates the payoff of your loan.
Over time, this creates a compounding effect in reverse: instead of interest working against you, reducing your balance faster lowers the total cost of borrowing.
Example: Paying off a loan early
Suppose you have a $25,000 loan at 6.5% interest over 5 years. By adding an extra $100 per month, you could pay off the loan months earlier and save hundreds of dollars in interest.
Use the calculator above to adjust the numbers and see how different extra payment amounts affect your results.
Is it worth making extra payments?
In most cases, yes.
For example:
- A $25,000 loan at 6.5% over 5 years
- Adding just $100/month
→ Can save hundreds in interest
→ Can reduce payoff time by several months
Extra payments go directly toward the principal, which reduces future interest.
Use the calculator above to test different scenarios.
Frequently asked questions
How are loan payments calculated?
Loan payments are calculated using an amortization formula that spreads repayment over a fixed number of periods. Each payment includes both interest and principal, with the balance gradually decreasing over time.
Does this include taxes, fees, or insurance?
No. This calculator estimates the core loan payment only. It does not include taxes, insurance, or additional lender fees that may be part of a real loan.
What happens when I add extra monthly payments?
Extra payments go directly toward the principal balance. This reduces future interest charges and shortens the time required to pay off the loan.
Is this calculator accurate?
This calculator provides a close estimate based on standard formulas. Actual loan terms may vary depending on lender rules, payment timing, and additional fees.
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