Enter your balances, get a payoff date — and see exactly what the easier order costs you.
Debt-free in
4 years, 2 months
Using the avalanche method at $1,100 a month.
$7,869 interest
$7,869 interest
Paying $1,100 a month against $46,100 of debt at a weighted average rate of 9.6% clears everything in 4 years, 2 months, costing $7,869 in interest. Your first debt gone is Credit card in 1 year, 11 months.
Minimum payments alone would take 6 years, 2 months and cost $15,244 in interest. Your $260 of extra payment cuts that to 4 years, 2 months and $7,869. Payment size matters far more than payoff order — the extra $260 is worth roughly 7375× what optimizing the order is.
Debt above 18% should be the priority over almost everything else, including investing beyond an employer match. Paying it off is a guaranteed, tax-free 24.5% return that no investment reliably matches. A balance transfer card with a 0% promotional period could pause the interest entirely — worthwhile only with a firm plan to clear the balance before the promotional rate expires.
Raising your payment to $1,300 clears the debt in 3 years, 5 months instead of 4 years, 2 months — 9 months earlier. Because interest accrues on the remaining balance, every additional dollar compounds in your favor.
Without $1,000–2,000 in reserve, the next car repair goes straight back onto a card and undoes months of progress. Build the starter buffer first, then attack the debt — it is the difference between a plan that survives a setback and one that collapses at the first surprise.
Size your emergency fundWorked scenarios with the full analysis, so you can see how the numbers move before entering your own.
A typical mixed-debt household paying $1,100 a month, where the high-rate credit card dominates the interest cost.
Debt-free in
4 years, 2 months
Paying $1,100 a month against $46,100 of debt at a weighted average rate of 9.6% clears everything in 4 years, 2 months, costing $7,869 in interest. Your first debt gone is Credit card in 1 year, 11 months.
Minimum payments alone would take 6 years, 2 months and cost $15,244 in interest. Your $260 of extra payment cuts that to 4 years, 2 months and $7,869. Payment size matters far more than payoff order — the extra $260 is worth roughly 7375× what optimizing the order is.
Debt above 18% should be the priority over almost everything else, including investing beyond an employer match. Paying it off is a guaranteed, tax-free 24.5% return that no investment reliably matches. A balance transfer card with a 0% promotional period could pause the interest entirely — worthwhile only with a firm plan to clear the balance before the promotional rate expires.
A single high-interest balance where every extra dollar has an outsized effect on the payoff date.
Debt-free in
2 years, 5 months
Paying $700 a month against $14,500 of debt at a weighted average rate of 26.9% clears everything in 2 years, 5 months, costing $5,213 in interest. Your first debt gone is Credit card in 2 years, 5 months.
Minimum payments alone would take 8 years, 10 months and cost $23,369 in interest. Your $340 of extra payment cuts that to 2 years, 5 months and $5,213. Payment size matters far more than payoff order — the extra $340 is worth roughly 18156× what optimizing the order is.
Debt above 18% should be the priority over almost everything else, including investing beyond an employer match. Paying it off is a guaranteed, tax-free 26.9% return that no investment reliably matches. A balance transfer card with a 0% promotional period could pause the interest entirely — worthwhile only with a firm plan to clear the balance before the promotional rate expires.
The same mixed-debt household using smallest-balance-first, showing the interest cost of the motivating order.
Debt-free in
4 years, 2 months
Paying $1,100 a month against $46,100 of debt at a weighted average rate of 9.6% clears everything in 4 years, 2 months, costing $7,869 in interest. Your first debt gone is Credit card in 1 year, 11 months.
Minimum payments alone would take 6 years, 2 months and cost $15,244 in interest. Your $260 of extra payment cuts that to 4 years, 2 months and $7,869. Payment size matters far more than payoff order — the extra $260 is worth roughly 7375× what optimizing the order is.
Debt above 18% should be the priority over almost everything else, including investing beyond an employer match. Paying it off is a guaranteed, tax-free 24.5% return that no investment reliably matches. A balance transfer card with a 0% promotional period could pause the interest entirely — worthwhile only with a firm plan to clear the balance before the promotional rate expires.
Both methods pay minimums on every debt and direct all remaining money at one target. They differ only in which debt is the target.
Avalanche targets the highest interest rate, which is mathematically optimal — it always produces the lowest total interest and the earliest payoff date. Snowball targets the smallest balance, which clears an account sooner and delivers a visible win. Once a debt is cleared, its minimum payment rolls into the next target, which is where the accelerating 'snowball' effect comes from in both methods.
People spend a great deal of energy deciding between avalanche and snowball, and comparatively little on the variable that dominates the outcome. On a typical mixed-debt profile, choosing avalanche over snowball might save $600. Finding an extra $200 a month might save $4,000 and cut a year off the timeline.
This is not an argument against optimizing the order — take the free money if the psychology allows it. It is an argument for spending your effort on the larger lever: raising the payment through reduced expenses, a side income, or directing raises and tax refunds at the balance.
A 0% balance transfer card pauses interest entirely for a promotional period, usually 12–21 months, for a transfer fee of 3–5%. On $10,000 of debt at 24%, that trades a $300–500 fee for roughly $2,400 a year of avoided interest. The arithmetic is strongly favorable — provided the balance is genuinely cleared before the promotional rate expires, because the go-to rate is typically as high as the one you left.
Consolidation loans work similarly but with a fixed rate and term, which removes the deadline risk. Both share the same failure mode: the cleared cards remain open, and without a change in the spending that created the balance, they refill. Treat consolidation as a tool that buys time to fix the underlying cash flow, not as the fix itself.
Minimums are structured to maximize interest paid over the life of the balance. On a card at 24%, minimum-only payments can take over two decades.
One car repair goes back on the card and undoes months of work. A $1,000–2,000 buffer first is what makes the plan survivable.
A consolidation loan that clears three cards leaves three cards with zero balances and available credit. Without a spending change, they refill.
A 50% match is an immediate 50% return. Skipping it to pay off a 7% car loan is a clear loss.
It raises utilization across remaining cards and shortens average account age. Freeze them instead of closing them.
Run both in the calculator and look at the gap. If avalanche saves a few hundred dollars, take whichever method you will actually complete — a mathematically optimal plan abandoned in month four saves nothing. If it saves several thousand, the math deserves more weight. Many people run a hybrid: clear one small balance first for the win, then switch to strict avalanche.
Paying only the minimum on a $8,400 balance at 24.5% takes over 20 years and costs more in interest than the original balance, because minimums are calculated to keep the account alive. Doubling the minimum typically cuts it to under three years. The calculator gives you a specific month, which is far more actionable than a general goal.
Build a starter buffer of $1,000–2,000 first, then attack high-interest debt aggressively, then complete the full three-to-six-month fund. Attacking debt with zero reserves means the next unexpected expense goes back onto a card, which erases progress and is demoralizing enough that many people quit entirely.
Paying down credit card balances helps quickly and substantially, because utilization is roughly 30% of a FICO score and recalculates as soon as your issuer reports. Paying off installment loans — car, student — barely moves the score, and closing the account can slightly lower it by shortening average account age and thinning your credit mix.
Compare the rate to a realistic after-tax investment return. Above roughly 8% — credit cards, most personal loans — paying off debt wins, because it is a guaranteed tax-free return at that rate. Below about 5% — many mortgages, subsidized student loans — investing usually wins. Always capture a full employer 401(k) match before paying extra on anything, since a 50% match beats every alternative.
Contact a nonprofit credit counseling agency through the National Foundation for Credit Counseling before missing payments. They can often negotiate reduced rates through a debt management plan. Reaching out early gives you considerably more options than reaching out after accounts go to collections.
The next calculations that usually follow this one.
Utilization is 30% of your FICO score and has no memory. It can improve in one billing cycle.
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