Debt Payoff Calculator
Compare the avalanche and snowball methods side-by-side. See exactly how much interest you'll save and when you'll be debt-free.
Avalanche vs Snowball
Avalanche
Pay minimums on everything. Put every extra dollar toward the debt with the highest APR. Once it's gone, roll that payment into the next-highest APR.
Best for:
People who are mathematically motivated. Saves the most money.
Snowball
Pay minimums on everything. Put every extra dollar toward the smallest balance. Once it's gone, roll that payment into the next-smallest.
Best for:
People who need quick wins to stay motivated. Easier to stick with.
How much does strategy matter?
The math is often closer than you'd think. On a typical mix of credit card and student loan debt, avalanche might save $500-$2,000 in interest over the payoff period โ significant, but not so large that you should pick the strategy you won't follow through on.
What Grove's debt payoff calculator gives you
Side-by-side comparison
Total interest, months to debt-free, and monthly savings for both strategies.
Target debt of the month
Grove tells you exactly which debt to put your extra payment toward this month.
Payoff timeline chart
Visualize your balance dropping month by month with your chosen strategy.
Auto-updated from real data
Import your credit card statements and Grove pulls balances and APRs automatically.
Frequently asked questions
What's the difference between avalanche and snowball?
Avalanche: pay extra toward the debt with the highest interest rate first. Mathematically cheapest โ you save the most on interest. Snowball: pay extra toward the smallest balance first, regardless of interest rate. Psychologically cheapest โ you get quick wins that keep you motivated.
Which strategy should I pick?
If you're purely optimizing for money, avalanche. If you've tried and failed to pay off debt before, snowball โ the early wins matter more than the math. Grove shows you the dollar difference between the two so you can decide with eyes open.
How does Grove calculate payoff timing?
Grove uses your actual debt balances, APRs, and minimum payments from your Grove account. You enter how much extra you can put toward debt each month, and Grove shows total interest, months to debt-free, and which debt to target next.
Should I pay off debt or invest?
Generally: high-interest debt (above 7-8%) should be paid before investing. Low-interest debt (mortgage, federal student loans) can coexist with investing. This isn't financial advice โ talk to a fiduciary for your specific situation.
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