Credit Card Payoff Calculator
Calculate how long to pay off credit card debt and total interest paid
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Formula
Formula
n = -log(1 - rP/PMT) / log(1 + r) where r = monthly rate, P = principal, PMT = payment
This calculates the number of payments needed. Minimum payments decline with balance, fixed payments stay constant.
How to Calculate Manually
- 1 Find your current credit card balance and APR
- 2 Check your statement for minimum payment calculation
- 3 Choose payment strategy: minimum or fixed amount
- 4 Calculate monthly interest rate (APR ÷ 12)
- 5 Apply payoff formula based on payment type
- 6 See total interest and time to freedom
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Reference Table
| Balance | APR | Min Payment (2%) | Fixed $200 | Fixed $400 |
|---|---|---|---|---|
| $5,000 | 22% | 32 years / $19,000 interest | 2.7 years / $1,500 interest | 1.1 years / $600 interest |
| $10,000 | 22% | 38 years / $48,000 interest | 5.6 years / $3,400 interest | 2.3 years / $1,200 interest |
| $20,000 | 22% | 44 years / $115,000 interest | 12 years / $8,600 interest | 4.7 years / $2,600 interest |
Credit card debt is one of the most expensive types of debt, with average APRs over 20%. Understanding how minimum payments keep you in debt is the first step to freedom...
Frequently Asked Questions
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Why does minimum payment take so long?
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How much extra should I pay?
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Should I transfer balance to 0% card?
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