Debt-Free Date Calculator
Enter your debt balance, interest rate, and monthly payment to find your exact payoff date and total interest cost.
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Your Debt-Free Date
Total Interest Paid
Total Amount Paid
Months to Pay Off
With Extra Payment: Side-by-Side Comparison
Current Plan
With Extra Payment
Payoff Date
Months
Total Interest
Interest Saved
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Payment Schedule (first 24 months)
| Month | Payment | Interest | Principal | Balance |
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How the Calculation Works
The payoff timeline uses the standard loan amortization formula. Each month, interest is charged on the remaining balance, and the rest of your payment reduces the principal.
Monthly Interest = Balance × (APR ÷ 12 ÷ 100)
Months = −log(1 − (Balance × r) ÷ Payment) ÷ log(1 + r)
Example: $8,500 at 19.99% APR with $250/month payments: monthly rate = 19.99%/12 = 1.666%. Monthly interest on first payment = $141.61. Principal reduction = $108.39. Payoff in approximately 50 months with $3,966 total interest paid.