Debt Avalanche Calculator
Minimize interest across multiple debts by paying the highest APR first. Free avalanche planner with snowball comparison on MyCalcsWorld.
Results · USD
Months to debt-free
Total interest
- Total paid
- $15,503.32
- Pay order
- Debt 1 → Debt 3 → Debt 2
- Interest vs snowball
- $45.66 less than the other method
Payoff highlights· 29 checkpoints
- Month
- 1
- Focus
- Debt 1
- Interest
- $167.40
- Remaining
- $12,817.40
- Month
- 2
- Focus
- Debt 1
- Interest
- $161.37
- Remaining
- $12,428.77
- Month
- 3
- Focus
- Debt 1
- Interest
- $155.24
- Remaining
- $12,034.01
Showing 3 of 24 rows — swipe the schedule below for the full table.
| Month | Focus | Interest | Remaining |
|---|---|---|---|
| 1 | Debt 1 | $167.40 | $12,817.40 |
| 2 | Debt 1 | $161.37 | $12,428.77 |
| 3 | Debt 1 | $155.24 | $12,034.01 |
| 4 | Debt 1 | $149.00 | $11,633.01 |
| 5 | Debt 1 | $142.66 | $11,225.67 |
| 6 | Debt 1 | $136.21 | $10,811.87 |
| 7 | Debt 1 | $129.65 | $10,391.52 |
| 8 | Debt 1 | $122.97 | $9,964.49 |
| 9 | Debt 1 | $116.19 | $9,530.68 |
| 10 | Debt 1 | $109.28 | $9,089.96 |
| 11 | Debt 1 | $102.26 | $8,642.22 |
| 12 | Debt 1 | $95.12 | $8,187.34 |
| 13 | Debt 3 | $87.86 | $7,725.20 |
| 14 | Debt 3 | $81.00 | $7,256.20 |
| 15 | Debt 3 | $74.24 | $6,780.44 |
| 16 | Debt 3 | $67.38 | $6,297.83 |
| 17 | Debt 2 | $60.42 | $5,808.25 |
| 18 | Debt 2 | $55.66 | $5,313.91 |
| 19 | Debt 2 | $50.92 | $4,814.83 |
| 20 | Debt 2 | $46.14 | $4,310.98 |
| 21 | Debt 2 | $41.31 | $3,802.29 |
| 22 | Debt 2 | $36.44 | $3,288.73 |
| 23 | Debt 2 | $31.52 | $2,770.24 |
| 24 | Debt 2 | $26.55 | $2,246.79 |
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Educational estimates · not financial advice · free, no signup
How this was calculated
Same month-by-month engine as snowball, but the focus debt is the highest APR (then lowest balance).
Want more detail? Full formula notes & FAQs ↓
Detailed guide
What it is, how to use it, how to read the numbers, common mistakes, a worked example, formulas, and FAQs.
What this calculator is
Debt avalanche targets the costliest interest first: after minimums, extra cash hits the highest APR balance. That usually reduces lifetime interest versus snowball, though the first win may take longer if the expensive debt is large. Enter the same multi-debt list and extra payment you would use for snowball. MyCalcsWorld simulates the schedule, shows focus order, and contrasts interest with the snowball path when both tools are available. Educational estimate — confirm due dates and fees with your lenders.
When to use / who it helps
- Optimizing total interest across cards and loans.
- Comparing avalanche vs snowball with identical inputs.
- Planning a refinance or balance-transfer bridge while paying down.
- Use the Debt Avalanche Calculator when you want a second opinion on a bank, broker, or app quote before you sign.
- Compare two scenarios side by side (rate, tenure, contribution) by changing one input at a time.
How to use
Steps
- Enter debts as balance,APR,min lines.
- Set your extra monthly payment.
- Review months, interest, and high-APR-first order.
- Check the interest comparison note against snowball.
- Optional: change one input to see how sensitive the result is.
- Open the Debt Avalanche Calculator on MyCalcsWorld and skim the labeled fields before you type.
How to interpret results
- Lower total interest than snowball is common but not guaranteed if APRs are similar.
- An error means payments cannot cover accruing interest.
- Each result is driven only by the labeled inputs (Debts (one per line: balance,APR,min), Extra monthly payment (money)); anything not on the form (fees, holidays, clinical adjustments) is outside this estimate.
- Primary outputs (payment, EMI, future value, tax due) appear at the top of the result panel; charts and year-by-year tables follow when the tool supports them.
- Total interest / total cost figures assume you keep the rate and schedule unchanged — prepayments, rate resets, and fees will move the real number.
Common mistakes & gotchas
- Sorting by balance instead of APR (that is snowball).
- Ignoring teaser APRs that jump after a promo window.
- Cutting minimums below lender requirements.
- Entering APR when the Debt Avalanche Calculator expects a nominal note rate (or the reverse) — that quietly skews payments.
- Forgetting fees, insurance, GST, or escrow that your real product includes outside the core fields: Debts (one per line: balance,APR,min), Extra monthly payment (money).
Worked example
Worked example — highest APR focus
- Same demo debts as snowball: 22.9%, 11.5%, 19.9% APRs.
- Avalanche focuses 22.9% first, then 19.9%, then 11.5%.
- Extra $200 plus rolled minimums accelerate the focus debt.
- Open the Debt Avalanche Calculator (debt avalanche) and note the starting defaults (debts (one per line: balance,apr,min) 3200,22.9,95 8500,11.5,210 1500,19.9,45, extra monthly payment 200).
Result: With defaults (debts (one per line: balance,apr,min) 3200,22.9,95 8500,11.5,210 1500,19.9,45, extra monthly payment 200), the Debt Avalanche Calculator shows: Months to debt-free 29; Total interest $2,303.32.
To load the form's own demo values, tap Try example above the Calculate button.
How to calculate / formula
Same month-by-month engine as snowball, but the focus debt is the highest APR (then lowest balance).
Frequently asked questions
Why choose avalanche?
It generally minimizes interest by clearing the most expensive balances first.
Can I mix strategies?
Some people snowball one tiny debt for momentum, then avalanche the rest — run both calculators to compare.
Do promo APRs matter?
Yes. If a rate jumps after a few months, update the APR or use the balance-transfer tool.
Are results guaranteed?
No — they assume fixed rates, on-time payments, and no new charges.
Is this financial, medical, or legal advice?
No. MyCalcsWorld tools are educational estimators you can reconcile with professional advice for your situation.
What does the Debt Avalanche Calculator on MyCalcsWorld actually compute?
Pay highest APRs first — minimize total interest across a multi-debt list. You enter Debts (one per line: balance,APR,min), Extra monthly payment (money), and the result panel updates in your browser.
What inputs does the Debt Avalanche Calculator need?
The Debt Avalanche Calculator asks for: Debts (one per line: balance,APR,min); Extra monthly payment.
What results does the Debt Avalanche Calculator show?
The panel reports Months to debt-free, Total interest. Each figure is recalculated whenever you change an input, so you can compare scenarios side by side.