Debt payoff calculator
The average American household carries $7,951 in credit card debt at 20.7% APR. Paying $200/month on that balance takes 5 years and costs $4,311 in interest — you pay $12,262 total for $7,951 borrowed. Increase to $400/month and you're done in 2 years with $1,668 interest. Doubling your payment saves $2,643 and 3 years.
Good to know
Minimum payments are designed to maximize interest. Credit card minimums (typically 1-3% of balance) ensure you stay in debt for decades. A $10,000 balance at 20% with minimum payments takes 37 years to pay off and costs $19,000+ in interest. The minimum is the bank's preference, not yours.
The debt avalanche saves money; the debt snowball saves motivation. Pay highest-rate debts first (avalanche) to minimize interest. Pay smallest balances first (snowball) to get quick wins that keep you motivated. Research shows snowball works better for most people because debt is as much psychological as mathematical.
Balance transfers can help — with discipline. A 0% APR balance transfer gives you 12-21 months interest-free. But transfer fees (3-5%) eat some savings, and the rate jumps to 20%+ after the intro period. This only works if you pay off the balance before the rate resets. Otherwise, you've just moved debt around.
Disclaimers & sources
Standard amortization calculation. Assumes fixed rate and payment. Actual terms may vary.