Loan Payoff Calculator
Enter your loan details and see exactly when you will be debt-free. Add extra payments to discover how much time and money you can save.
Track Every Payment & Stay on Course
Our Freelancer Expense Tracker makes it dead simple to track loan payments, see progress, and stay motivated on your debt-free journey.
Get the Expense Tracker →How Loan Payoff Works
Every monthly payment you make is split between interest and principal. In the early months, most of your payment goes toward interest. As the balance shrinks, more goes to principal. This is called amortization, and the schedule above shows you exactly how it plays out month by month.
Extra payments go directly to principal, which reduces the balance faster — and since interest is calculated on the remaining balance, you pay less interest going forward. Even $50-$100 extra per month can save thousands over the life of a loan.
How to Use This Calculator
- Enter your remaining loan balance — check your latest statement.
- Enter the annual interest rate (APR) — this is on your loan agreement.
- Enter your current monthly payment.
- Optionally enter an extra monthly payment to see the impact.
- Review the amortization schedule to understand where every dollar goes.
Strategies to Pay Off Loans Faster
- Round up payments — if your payment is $437, round to $500. The extra $63 goes straight to principal.
- Biweekly payments — pay half your monthly amount every 2 weeks. You end up making 26 half-payments (13 full payments) per year instead of 12.
- Debt avalanche method — if you have multiple loans, put extra money toward the highest-rate loan first. Use our debt payoff template to track progress.
- Refinance — if rates have dropped since you took the loan, refinancing could lower your rate and save thousands.
- Windfalls to principal — tax refunds, bonuses, and side hustle income can knock months off your timeline.
Types of Loans This Calculator Works For
- Student loans (federal and private)
- Auto loans
- Personal loans
- Mortgages
- Credit card debt (use the minimum payment as your monthly amount)
Related Resources
- Debt Payoff Calculator (Multiple Debts) — plan your strategy for multiple loans
- Savings Goal Calculator — once debt-free, start building wealth
- Budget Calculator — find room in your budget for extra payments
- Debt Payoff Budget Template
- How to Pay Off Student Loans Fast
Frequently Asked Questions
Does making extra payments actually save that much?
Yes. On a $30,000 loan at 7% with $500/month payments, adding just $100 extra per month saves you $3,400 in interest and pays off the loan 18 months early. The higher your interest rate, the more dramatic the savings.
Should I pay off my loan early or invest?
As a general rule, if your loan rate is above 6-7%, pay it off first. If it is below 4-5% (like many mortgages), you may earn more by investing in index funds. Between 4-7% is a gray area — paying off debt is a guaranteed "return" equal to your interest rate.
Does this calculator account for variable rates?
No, this assumes a fixed interest rate. If you have a variable rate loan, use your current rate for a snapshot. Re-run the calculator if your rate changes.
What if my payment does not cover the interest?
If your monthly payment is less than the monthly interest charge, your balance will grow over time (negative amortization). The calculator will warn you if this happens. You need to increase your payment to at least cover the interest.
Is there a penalty for paying off loans early?
Some loans (especially mortgages and auto loans) have prepayment penalties. Check your loan agreement. Federal student loans never have prepayment penalties. If your loan does, factor in the penalty cost when deciding whether to make extra payments.