Loan Payoff Calculator.
A loan payoff calculator helps you estimate your debt-free date and the interest you’ll pay over time. This page is built for non-mortgage debt: personal loans, auto loans, student loans, HELOCs, and other balances where extra payments can accelerate payoff. Start with the primary tool to run your baseline scenario, then use the specialized calculators below when your debt type or payoff strategy needs more precision.
No sign-up. No spam. Just run the numbers and pick a payoff plan you can stick with.
How this works (in plain English)
1) Start with your baseline
Enter your current balance, interest rate, and monthly payment. This gives you a baseline payoff date and total interest paid if you keep doing what you’re doing today.
2) Add extra payments
Extra payments reduce your principal faster. Because interest is calculated from your remaining balance, reducing principal earlier usually creates the biggest long-term savings.
3) Compare scenarios
Try +$25, +$50, +$100 per month, or a yearly lump-sum. The “best” strategy isn’t the fastest—it’s the one you can sustain without breaking your budget.
Primary loan payoff calculator
Extra Payment Strategy
Most loans charge interest based on your remaining principal. When you apply extra payments (especially early), you reduce the balance faster—so interest has less time to accumulate. This tool helps you estimate your payoff date, compare payoff timelines, and understand the interest savings from consistently paying a little extra.
Best for
- Personal loans and installment debt
- Auto loans (fixed payment schedules)
- General payoff planning with extra payments
Common mistakes
- Choosing a “perfect” extra payment you won’t maintain
- Ignoring fees or rate changes (especially for revolving debt)
- Not checking if extra payments apply to principal
Specialized loan payoff calculators
Use these calculators when your situation needs more specific modeling—student loan payoff planning, HELOC payoff scenarios, comparing biweekly schedules, or running side-by-side what-if strategies. These tools help you pressure-test your plan before you commit to it.
Student Loan Payoff
Model student-loan payoff timelines, compare extra payments, and estimate interest savings.
OPEN TOOL →HELOC Payoff
Plan payoff for home equity lines of credit and understand the impact of variable-rate debt.
OPEN TOOL →Bi-Weekly Payoff
Compare standard monthly vs bi-weekly schedules and see how payment frequency affects payoff time.
OPEN TOOL →What-If Comparison
Run side-by-side payoff scenarios to decide which strategy saves more time and interest.
OPEN TOOL →