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Debt Payoff Calculator

Enter up to five balances with APR and minimum payment. Choose avalanche or snowball and an optional extra. Read months, interest, and total paid. Informational, not lending advice.

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How to run a debt payoff sketch

  1. Enter each debt balance, APR, and minimum payment you want to include. Leave unused balances at 0.
  2. Add an optional extra payment that targets the focus debt each month.
  3. Choose avalanche (highest APR first) or snowball (lowest balance first).
  4. Read months to pay off, total interest, total paid, and the strategy label.
  5. Treat the schedule as arithmetic on this device, not a lender quote or credit advice.

Multi-debt payoff sketch

Monthly simulation with avalanche or snowball focus

AvalancheExtra targets highest APR first
SnowballExtra targets lowest balance first
MinimumsStay on every open debt each month
Freed minimumsRoll into the focus debt after a balance clears
CapSimulation stops with an error after 720 months
AdviceInformational. Not lending advice.

What this debt payoff page simulates

Each month the page adds interest to open balances, pays every minimum, and sends extra plus any freed minimums to one focus debt. Avalanche ranks by APR. Snowball ranks by balance. Up to five debts are supported through balance1 to balance5 fields.

How the months are counted

Monthly interest on each debt is balance times (APR / 100 / 12). Payments reduce balances after interest. The loop continues until every balance is cleared or 720 months pass. Totals sum interest and cash paid across the run.

Related money pages

Comparing an old blended payment path to one new loan is on debt consolidation. A single revolving balance payoff sits on credit card payoff. A standard amortizing payment is on loan.

Use cases

Compare avalanche versus snowball on the same debts and extra. See how much faster an extra $100 clears the stack. Not a credit counseling plan or lender offer.

Worked example

Debt 1 is $5,000 at 22% APR with a $150 minimum. Debt 2 is $3,000 at 12% APR with a $100 minimum. Extra is $100 under avalanche. The focus debt starts as Debt 1. The page reports months, interest, and total paid when both balances clear.

Limits

No fees, penalty APR, new charges, or credit score effects. Payments that never cover interest can hit the 720-month cap. Informational, not lending advice. See the disclaimer.

Debt payoff questions

What is avalanche versus snowball?
Avalanche sends extra to the highest APR first. Snowball sends extra to the lowest balance first. Minimums still apply to every open debt.
What happens when a debt is paid off?
Its minimum is freed and added to the extra that targets the next focus debt.
How many debts can I enter?
Up to five. This form shows three; leave unused balances at 0. The engine also accepts balance4 and balance5 if present.
Why does the page error after many months?
If balances would remain after 720 months, the page stops and asks for higher payments or lower balances.
Is this lending advice?
No. Informational arithmetic only.
Does CZNull upload my balances?
No. The simulation runs in the page you opened.