Debt payoff calculator
A debt payoff calculator shows how fast you can be debt-free and how much interest you’ll save. Enter each balance, APR and minimum, add an extra monthly amount, and compare the avalanche method (highest APR first, least interest) with the snowball method (smallest balance first, fastest wins).
On top of all minimums — this is what powers the payoff.
Debt-free (avalanche)
2 yr 11 mo
Avalanche
2 yr 11 mo
$3,624 interest
Snowball
2 yr 11 mo
$3,624 interest
Payoff order (avalanche)
- Store card — cleared by Jan 2027
- Credit card — cleared by Jul 2028
- Auto loan — cleared by May 2029
How this estimate is calculated
We simulate every debt month by month. Each month interest accrues on each balance, every debt gets its minimum payment, and the rest of your fixed budget (all minimums plus your extra) is thrown at one target debt — the highest-APR debt for avalanche, the smallest-balance debt for snowball. When a debt clears, its payment rolls onto the next. The baseline pays only minimums with no extra, so the difference is your interest and time saved.
See our full methodology for assumptions, limits and the 2026 data used.
Sources
- Federal Reserve G.19 (Consumer Credit) (as of 2026-02-28)
- Written by
- Colson — Founder & consumer-finance researcher, ColsonSuperApps LLC
- Verified
- Every figure checked against its cited primary source
- Last updated
- June 14, 2026
- Standards
- Editorial policy
These results are educational estimates based on the figures you enter and standard financial math, not financial advice or an offer of credit. Your actual rate, payment and terms depend on your credit, lender and other factors. Verify any number with the lender before you act.
Frequently asked questions
Is the snowball or avalanche method better?
The avalanche method (highest APR first) always costs the least interest mathematically. The snowball method (smallest balance first) clears individual debts faster, which many people find more motivating. This calculator shows both so you can weigh math against momentum.
How does an extra payment help so much?
Minimum payments are mostly interest, so balances barely move. Every extra dollar goes straight to principal on your target debt, which compounds: clearing one debt frees its whole payment for the next, accelerating each payoff.
Does Fynliko store my debt details?
No. Every calculation runs in your browser and nothing you type is sent to or stored by us. There’s no login and no tracking of your balances.