Debt Payoff Calculator
Plan paying off multiple debts with avalanche or snowball strategies. See months to debt-free and total interest for each method.
Your debts
Debt-free in
36 months
3.0 years
Total interest
$1,779
Total paid
$10,279
Snowball comparison
36 months
$1,779 interest
Avalanche pays the highest-rate debt first to minimize interest; snowball pays the smallest balance first for quick wins. Both work — pick the one you will actually stick with.
How it works
Snowball sorts by balance ascending; avalanche sorts by APR descending. Fixed monthly budget applied; interest accrues monthly.
Example: $20,000 across 3 cards with $600/month → avalanche pays ~$2,300 less interest than snowball on equal balances.
Debt Payoff Calculator on True Calculator gives you an instant, accurate answer with no sign-up and no app install. Plan paying off multiple debts with avalanche or snowball strategies. See months to debt-free and total interest for each method. Every result shows the formula and a worked example so you can verify the calculation yourself, and all values are computed in your own browser — your numbers never leave your device.
Popular uses: debt payoff calculator · debt snowball calculator · debt avalanche calculator
Last updated: August 2026
How We Calculate
This calculator uses standard mathematical formulas verified by our team. All calculations are performed instantly in your browser using JavaScript — no data is sent to any server. The formulas used are industry-standard and match those used by banks, financial institutions and health organizations.
For financial calculators, we use RBI-approved formulas and regularly updated bank rates. For health calculators, we use WHO-recommended formulas and medical standards. All rates and standards are sourced from official government and regulatory websites.
Frequently Asked Questions
Which is better — debt snowball or debt avalanche?
Avalanche saves the most money by targeting the highest interest rates first. Snowball builds momentum by paying off the smallest balances first. Compare both strategies here to see the difference.
How much faster can I pay off debt with extra payments?
Even $50 extra per month can shave years off your payoff timeline. Add your monthly budget and the calculator shows the total interest you save.
Should I pay off the highest rate or the smallest balance first?
The highest rate saves you the most interest overall (avalanche). The smallest balance gives quicker wins that keep you motivated (snowball). Both keep you paying the same total monthly budget.
Is this debt payoff calculator free to use?
Yes, True Calculator's debt payoff calculator is completely free with no sign-up, no app install and no usage limits.
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