Debt Payoff Calculator

Find out precisely how long it will take to eliminate your debt and how much interest you will bleed.

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Months Until Freedom
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Total Interest Paid
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Total Payoff Amount
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Formula / Calculation
Months = -log[1 - (r × P) / PMT] / log(1 + r)

Navigating the Geometry of Debt

High-interest debt (like credit cards and payday loans) uses daily compounding interest working against you. If you only pay the minimum monthly amount, virtually your entire payment goes toward simply servicing the interest charge, leaving the underlying principal untouched for years or decades.

Understanding Debt Metrics

Amortization Reality

In the early stages of a loan or credit card balance, the bulk of your payment is consumed by interest. You only start significantly reducing the principal later on.

The Minimum Payment Trap

Credit card companies set minimum payments staggeringly low (often 1-2% of the balance plus interest) specifically to keep you trapped in debt as long as mathematically possible.

Snowball vs. Avalanche

Avalanche method: target the highest interest rate debt first (mathematically optimal). Snowball method: target the smallest balance first (psychologically optimal to score quick wins).

Tips to Eradicate Debt Faster

Throw every unexpected windfall (tax refunds, bonuses) directly at the principal balance.
Request a lower APR. Sometimes simply calling the credit card provider and asking for a rate reduction works if you have good standing.
Look into a 0% APR Balance Transfer card. It halts interest accumulation for 12-18 months, allowing your entire payment to crush the principal.
Halt all new borrowing. Stop the bleeding before trying to stitch the wound.

Frequently Asked Questions

Why does my payoff time say "Payment too low"?
Because your chosen monthly payment is less than the amount of interest generated each month. You will literally be in debt forever and the balance will continue to grow.
Is it better to invest or pay off debt?
Mathematical rule of thumb: If your debt interest rate (e.g., 20% on credit cards) is higher than the expected stock market return (e.g., 10%), you must pay off the debt first. It is a guaranteed 20% ROI.