💰 Finance
Debt Payoff Calculator
Use this free debt payoff calculator to get fast, accurate results.
📝 Your Assumptions
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This debt payoff calculator shows exactly what it takes to eliminate a fixed-rate loan. Enter your balance, interest rate, and term to see your monthly payment, total interest, and total amount paid. Whether it's a personal loan, student loan, or credit card consolidation, you'll know the real cost before you commit.
How to Use This Calculator
Follow these five steps to get accurate payoff numbers for any fixed-rate debt.
1
Enter Your Total Loan Amount
Type the full balance you owe, such as $15,000 for a personal loan or $35,000 for a new car. This is the principal before any interest is added. If you're consolidating multiple debts, add them together first.
2
Input Your Annual Interest Rate
Enter the rate as a percentage, like 6.5 for a 6.5% APR. Check your loan statement or lender's website for the exact figure. Even a 1% difference matters: a $20,000 loan at 5% costs $2,000 less in interest than at 6% over five years.
3
Choose Your Loan Term in Years
Select the number of years you'll take to repay the debt. Common terms are 3, 5, 7, or 10 years. A shorter term means higher monthly payments but far less total interest.
4
Review Your Monthly Payment
The calculator instantly shows your fixed monthly payment. For a $25,000 loan at 7% over 5 years, that's $495.03 per month. Compare this to your budget to ensure it's manageable.
5
Check Total Interest and Total Paid
See how much interest you'll pay over the life of the loan and the grand total. A $25,000 loan at 7% for 5 years costs $4,701.80 in interest, for a total of $29,701.80. Try a shorter term to see how much you could save.
What Your Results Mean
These six outputs and concepts tell you the true cost of your debt and how to minimize it.
Monthly Payment
This is the fixed amount you'll pay every month until the loan is gone. It covers both principal and interest. For a $10,000 loan at 5% over 3 years, your payment is $299.71.
Total Interest
The sum of all interest charges over the loan's life. It's the real cost of borrowing. On a $30,000 auto loan at 6% for 6 years, you'll pay $5,797.20 in interest alone.
Total Paid
Your loan amount plus total interest. This is the actual amount that will leave your bank account. A $20,000 loan at 8% over 4 years has a total paid of $23,431.20.
Amortization
The process of paying off a loan with scheduled payments. Early payments are mostly interest; later ones are mostly principal. On a $15,000 loan at 6% for 5 years, the first payment is $75 interest and $215 principal.
Interest Rate Impact
Higher rates dramatically increase your cost. A $50,000 loan over 5 years costs $6,600 in interest at 5%, but $10,600 at 8%. That's a $4,000 difference for the same balance.
Loan Term Trade-off
Longer terms lower your monthly payment but raise total interest. Stretching a $20,000 loan from 3 to 6 years at 7% cuts the monthly payment from $617.54 to $341.09, but adds $2,938 in interest.
Key Terms
Principal
The original amount of money you borrowed, before any interest is added. If you take out a $10,000 loan, your principal is $10,000.
Interest Rate
The percentage a lender charges you to borrow money, expressed as an annual rate. A 6% rate on a $5,000 balance means $300 in interest per year if you don't pay it down.
Amortization
The gradual repayment of a loan through scheduled payments that cover both interest and principal. Over time, the interest portion shrinks and the principal portion grows.
APR
Annual Percentage Rate, which includes the interest rate plus certain lender fees. It gives a more complete picture of the loan's true cost than the interest rate alone.
Loan Term
The length of time you have to repay the loan, usually measured in months or years. A 5-year term means 60 monthly payments.
❓ Frequently Asked Questions
The calculator uses the standard amortization formula: M = P × [r(1+r)^n] / [(1+r)^n – 1], where M is the monthly payment, P is the principal, r is the monthly interest rate (annual rate divided by 12), and n is the total number of months. For a $20,000 loan at 6% annual interest over 5 years, r = 0.06/12 = 0.005 and n = 60. Plugging in: M = 20000 × [0.005(1.005)^60] / [(1.005)^60 – 1]. That works out to $386.66 per month. The total paid is $386.66 × 60 = $23,199.60, so total interest is $3,199.60. This formula assumes a fixed interest rate and equal monthly payments. If you want to see how extra payments change the timeline, use our loan calculator to compare scenarios. The math is identical for any fixed-rate installment debt.
Paying off debt gives you a guaranteed return equal to your interest rate. If you have a $10,000 loan at 7%, every extra dollar you pay saves you 7% in interest. Investing in the stock market historically returns around 7–10% annually, but it's not guaranteed and you could lose money. For debt above 7%, paying it off first is usually the safer bet. For example, if you have $5,000 in credit card debt at 18% APR, paying it off saves you $900 per year in interest — a guaranteed 18% return. No investment reliably beats that. If your debt is below 4%, like a mortgage at 3.5%, you might earn more by investing the extra cash. But for most consumer debt above 6%, prioritize payoff. Use our loan calculator to see exactly how much interest you'd save by adding $100 or $200 to your monthly payment.
Stretching a loan term lowers your monthly payment but increases total interest significantly. Take a $30,000 loan at 7% interest. Over 3 years, your monthly payment is $926.31 and total interest is $3,347.16. Over 5 years, the payment drops to $594.04, but total interest jumps to $5,642.40. Over 7 years, the payment is $452.69, and total interest hits $8,025.96. That's a difference of $4,678.80 in interest between 3 and 7 years — for the same $30,000 borrowed. The longer term gives you breathing room each month, but you pay dearly for it. If you can afford the higher payment, a shorter term almost always saves money. Run both scenarios through our debt payoff calculator to see the trade-off in black and white.
Extra payments go directly toward the principal, which reduces the remaining balance and cuts future interest charges. Suppose you have a $25,000 loan at 6% over 5 years. The required payment is $483.32 per month, and total interest is $3,999.20. If you add just $100 extra each month, you'll pay off the loan in about 49 months instead of 60 and save roughly $600 in interest. Add $200 extra, and you'll finish in about 41 months and save over $1,100. The earlier you start making extra payments, the more you save because interest is calculated on the remaining balance. Even one extra payment per year can shave months off your term. To see the exact impact for your loan, use our loan calculator and adjust the term or payment amount to match your extra-payment plan.
Consolidation combines multiple debts into a single loan, ideally with a lower interest rate. If you have three credit cards with balances of $5,000 at 22%, $3,000 at 19%, and $2,000 at 24%, your total is $10,000 with a weighted average rate of about 21.4%. Minimum payments might total $400 per month and take over 10 years to clear. If you qualify for a personal loan at 10% over 5 years, your new payment is $212.47, and total interest is $2,748.20 — far less than the $15,000+ you'd pay on the cards. But consolidation only works if you stop using the cards. Otherwise, you'll end up with new debt on top of the loan. Compare your current total monthly payments and total interest to the consolidation offer using our debt payoff calculator before signing anything.
Start with the monthly payment you can comfortably afford without stretching. Lenders typically prefer your total debt payments — including housing — to stay below 36% of your gross monthly income. If you earn $5,000 per month, that's $1,800 for all debt. Suppose you already pay $1,200 for a mortgage. That leaves $600 for other loans. If you need to borrow $20,000 at 7%, a 3-year term costs $617.54 per month, which exceeds your $600 limit. A 4-year term drops the payment to $478.92, fitting your budget while keeping total interest at $2,988.16. A 5-year term lowers the payment to $396.02 but raises total interest to $3,761.20. Choose the shortest term you can afford. Use our auto-loan-calculator or mortgage-calculator to see how different terms affect your overall debt-to-income ratio.
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