How do extra payments affect a loan?

When additional payments reduce principal, they can lower future interest and shorten the estimated payoff period.

Can I add a one-time extra loan payment?

Yes. PRAVIAX can model an optional one-time extra principal payment in addition to recurring monthly extra payments.

Is this loan payoff estimate exact?

No. It is an educational estimate based on a fixed annual rate and monthly interest. Actual lender calculations, fees, payment timing and prepayment rules may differ.

DEBT & PAYOFF

Loan Payoff Calculator

Q: How do I calculate when my loan will be paid off?

Enter your remaining loan balance, annual interest rate and current monthly payment. The calculator estimates how many monthly payments remain and an approximate payoff date.

Estimate when your existing loan could be paid off and see how recurring or one-time extra payments may reduce interest and shorten your repayment timeline.

CURRENT LOAN

Enter your remaining loan details

Remaining balance

Interest rate (APR)

Current monthly payment

Extra payment each month

One-time extra payment

Apply one-time payment in month

month

Try extra monthly payment

This is an educational estimate for a fixed-rate loan. Extra payments are modeled as principal reduction. Check your lender's actual rules, including how extra payments are applied and whether prepayment fees exist.

AMORTIZATION

First 12 payments

The faster-payment scenario is shown below.

Month	Payment	Extra	Principal	Interest	Balance
Enter your loan details to generate a schedule.

Enter your current loan

Use the remaining balance, APR and current principal-and- interest payment from your loan information.

Test extra payments

Add a recurring monthly amount, a one-time payment, or both.

Compare your payoff

See the estimated time and interest difference between your current plan and faster plan.

HOW IT WORKS

Extra payments reduce the modeled balance

Each month, interest is calculated from the remaining balance. The normal payment first covers that interest, while the remainder reduces principal. Extra payments are modeled as additional principal reduction.

Monthly interest = balance × (APR ÷ 12)Principal = payment − interest + extra principal

Example$20,000 remaining balance

6.5% APR
$400 current payment
+ $100 per month

PRAVIAX compares the original payoff path with the faster repayment plan and calculates the estimated time and interest saved.

DEBT WORKFLOW

Working with credit card debt instead?

Use the dedicated Credit Card Payoff Calculator for a card-focused payoff estimate and extra-payment comparison.

Credit Card Payoff Calculator →

FAQ

Loan payoff calculator FAQ

How do I calculate when my loan will be paid off?

Enter the remaining balance, APR and current monthly payment. PRAVIAX simulates the remaining monthly payments until the modeled balance reaches zero.

How do extra payments affect my loan?

When extra payments are applied to principal, the remaining balance falls faster, which can reduce future interest and shorten the payoff period.

Can I model a one-time payment?

Yes. Enter a one-time extra payment and select the month in which you want the calculator to apply it.

Is the result the same as my lender's payoff quote?

Not necessarily. Lenders may use different interest conventions, exact payment dates, fees or prepayment rules. Use this tool as an estimate.