๐Ÿ’ณ Debt Payoff Calculator

Pay Off Debt Faster โ€” Avalanche vs Snowball

Add your debts, set your extra monthly payment, and see exactly which method gets you debt-free sooner and saves you the most interest.

Your Debts

Debt NameBalance ($)Rate (%)Min Payment ($)
Debt-Free Date
โ€”
โ€” months
Total Interest
$0
Compared to min payments
Interest Saved
$0
vs. minimum payments only
Total Debt
$0
Current balance
Avalanche Method
Target highest interest rate first. Minimizes total interest paid.
Debt-free inโ€”
Total interest$0
Interest saved vs minimums$0
Snowball Method
Target lowest balance first. Builds momentum with quick wins.
Debt-free inโ€”
Total interest$0
Interest saved vs minimums$0

Payoff Timeline

Avalanche vs Snowball โ€” Which Should You Use?

Both methods use the same core strategy: pay minimums on all debts, then throw all extra money at one target debt. The difference is which debt you target first.

Avalanche Method

Target the debt with the highest interest rate first. Once it's paid off, roll that payment onto the next-highest-rate debt. This method minimizes total interest paid and gets you debt-free the fastest in mathematical terms. If you're motivated by numbers and long-term optimization, avalanche is the better choice.

Snowball Method

Target the debt with the smallest balance first. You eliminate debts faster โ€” the number of debts drops quickly โ€” which provides psychological wins and momentum. Research by Harvard Business Review found that the snowball method leads to higher debt elimination rates in practice, even if it costs slightly more in interest. If you need motivation to stay on track, snowball is often more effective in the real world.

The Honest Answer

The best method is the one you stick with. For most people with similar-rate debts, the difference between avalanche and snowball is small. The extra payment amount matters far more than which method you choose โ€” even an extra $100/month can cut years off your debt-free date.

Frequently Asked Questions

What counts as "extra" monthly payment?
Any amount above your minimum payments. Even $50โ€“$100/month extra can shave years off your debt payoff date and save thousands in interest. The calculator shows minimum payments already built in โ€” the extra payment is the accelerator on top.
Should I pay off debt or invest?
The rule of thumb: if your debt's interest rate is higher than your expected investment return (typically 7% for a diversified index fund), pay off debt first. Credit cards at 20%+ should always be paid aggressively. Student loans at 4% might be worth investing alongside. It's a math problem with your own rates.
How does debt affect my FIRE timeline?
High-interest debt is the opposite of compounding โ€” it grows against you. $10,000 at 20% APR costs $2,000/year just in interest. Every dollar of high-interest debt you eliminate is equivalent to earning a guaranteed 20% return. Eliminating consumer debt is almost always the highest-return "investment" available to you before you start building wealth.

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