Budget

Debt Snowball + Avalanche Calculator

Stop wondering whether snowball or avalanche saves more. Enter your debts once, see both payoff timelines side-by-side: total interest, payoff date, and month-by-month progress.

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Everything you need to actually use it

This is for you if...

You have 3+ debts and want to know which one to attack first

You've heard snowball and avalanche advice but need to see your numbers

You're on track but want to see what adding $100/month would do

You want to watch the payoff date move forward as you log extra payments

Common questions

Avalanche (highest APR first) always saves more money. Snowball (smallest balance first) usually wins psychologically because of early wins. This template shows you the exact trade-off in dollars and months so you can pick what you'll stick with.
Enter the promo APR and the expiration date. The template warns you when a promo is ending and auto-applies the post-promo APR going forward.
You enter whatever rate is on your current statement. Adjust quarterly if rates shift. The calc is accurate at today's rate.
Yes. Use the 'What-if' row to model a consolidated loan: enter new balance, new rate, new term. See whether it actually helps.
Yes, but consider that federal student loans have forgiveness and income-driven options that don't show up in this calculator. Use it for the math; don't use it as the sole basis for a student loan decision.
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See the debt-free date, then beat it.

Snowball vs avalanche, side-by-side. Excel file + Google Sheets copy.

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