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Debt Payoff Calculator

Use this debt payoff calculator to compare payment, payoff, or borrowing scenarios for debt payoff.

Primary answer
Avalanche payoff time
Inputs to verify
Debt 1 balance, Debt 1 APR, and Debt 1 minimum payment
Use type
Use as an estimate that depends on assumptions.
Keyword intent
debt payoff calculator

Calculator

Debt Payoff Calculator

Calculates avalanche payoff time from debt 1 balance, debt 1 apr, debt 1 minimum payment. Defaults are filled in so you can review a working example before changing inputs.

USD

Balance for the first debt. Enter 0 to exclude it.

%

Annual rate for the first debt.

USD

Required monthly payment for the first debt.

USD

Balance for the second debt. Enter 0 to exclude it.

More inputs6 additional assumptions
%

Annual rate for the second debt.

USD

Required monthly payment for the second debt.

USD

Balance for the third debt. Enter 0 to exclude it.

%

Annual rate for the third debt.

USD

Required monthly payment for the third debt.

USD

Additional monthly amount applied to the strategy target after minimum payments.

Result

Result reflects the current submitted inputs.

  • Risk B
  • Reviewed 2026-05-26
  • 3 sources
Avalanche payoff time28 months
Avalanche total interest3,042.24 USD
Snowball payoff time28 months
Snowball total interest3,248.84 USD
Avalanche interest difference206.6 USD
Payoff time difference0 months
Avalanche total paid22,542.24 USD
Snowball total paid22,748.84 USD
First debt paid off, avalancheDebt 1
First debt paid off, snowballDebt 2

Breakdown

Active debts
3
Total monthly payoff budget
820 USD
  • All balances, rates, and minimum payments are user-entered; no issuer or lender terms are looked up.
  • Interest accrues monthly using annual APR divided by 12.
  • Minimum payments are paid on every active debt before extra payment is applied to the strategy target.
  • When a debt is paid off, its prior minimum payment remains in the total monthly payoff budget for the remaining debts.
  • The model supports up to three debts in this packet and excludes fees, penalties, variable rates, hardship plans, settlement offers, and tax effects.
  • This is an educational comparison, not financial advice, legal advice, credit counseling, or a debt-relief recommendation.

Accuracy notes

Risk level
B
Reviewed
2026-05-26
Sources
3
Primary result
Avalanche payoff time

Formula logic is kept in a pure calculator module with fixtures, source notes, and page-visible assumptions.

Categories

What the result means

Use Avalanche payoff time as the headline answer for debt payoff. Months to pay all debts when extra payment targets the highest APR debt first. Read the payment or payoff number first, then compare interest, balance, and timing outputs before changing a loan decision. Use avalanche total interest, snowball payoff time, and snowball total interest to explain why avalanche payoff time moved when an input changed. Run at least one conservative and one optimistic scenario before comparing with a real quote or statement.

Avalanche payoff timeMonths to pay all debts when extra payment targets the highest APR debt first.
Avalanche total interestTotal interest under the highest-APR-first strategy.
Snowball payoff timeMonths to pay all debts when extra payment targets the smallest balance first.
Snowball total interestTotal interest under the smallest-balance-first strategy.

Use the result this way

  1. Start with Avalanche payoff time, then use supporting outputs only to explain the primary answer.
  2. Verify debt 1 balance, debt 1 APR, and debt 1 minimum payment before copying the result.
  3. Keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise.
  4. Run at least one conservative and one optimistic scenario before comparing with a real quote or statement.

User job

How to use this calculator

Use Debt Payoff Calculator when you need avalanche payoff time, then use avalanche total interest and snowball payoff time to check the context for planning conversations, quote comparisons, payment checks, and scenario review.

Best for

  • Comparing one financial scenario with another
  • Preparing questions for a lender, advisor, or statement review
  • Reviewing a default example before entering your own debt 1 balance and debt 1 apr.

Check before relying

  • Verify rates, fees, timing, taxes, and local rules against official documents before acting.
  • All balances, rates, and minimum payments are user-entered; no issuer or lender terms are looked up.
  • Interest accrues monthly using annual APR divided by 12.
  • Source context: Financial Readiness, U.S. Department of Defense / USALearning, reviewed 2026-05-26.

Next useful step

Formula

The calculator simulates three user-entered debts with monthly interest, required minimum payments, and one extra payment pool. Avalanche targets the highest APR; snowball targets the smallest balance. Key assumptions: All balances, rates, and minimum payments are user-entered; no issuer or lender terms are looked up. Interest accrues monthly using annual APR divided by 12. Minimum payments are paid on every active debt before extra payment is applied to the strategy target.

  • The calculator simulates three user-entered debts with monthly interest, required minimum payments, and one extra payment pool. Avalanche targets the highest APR; snowball targets the smallest balance.
  • All balances, rates, and minimum payments are user-entered; no issuer or lender terms are looked up.
  • Interest accrues monthly using annual APR divided by 12.
  • Primary source context: Financial Readiness, U.S. Department of Defense / USALearning.

Inputs

Enter debt 1 balance, debt 1 APR, debt 1 minimum payment, and debt 2 balance for planning conversations, scenario checks, and lender or statement comparison. Before calculating, keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise. Debt 1 balance: Balance for the first debt. Enter 0 to exclude it. Debt 1 APR: Annual rate for the first debt. Debt 1 minimum payment: Required monthly payment for the first debt. Debt 2 balance: Balance for the second debt. Enter 0 to exclude it.

Debt 1 balanceBalance for the first debt. Enter 0 to exclude it.
Debt 1 APRAnnual rate for the first debt.
Debt 1 minimum paymentRequired monthly payment for the first debt.
Debt 2 balanceBalance for the second debt. Enter 0 to exclude it.
Debt 2 APRAnnual rate for the second debt.
Debt 2 minimum paymentRequired monthly payment for the second debt.
Debt 3 balanceBalance for the third debt. Enter 0 to exclude it.
Debt 3 APRAnnual rate for the third debt.
Debt 3 minimum paymentRequired monthly payment for the third debt.
Extra monthly paymentAdditional monthly amount applied to the strategy target after minimum payments.

Example

Using the default inputs, Debt Payoff Calculator returns avalanche payoff time of 28. Adjust debt 1 balance, debt 1 APR, debt 1 minimum payment, and debt 2 balance to match your own scenario.

FAQ

How is avalanche payoff time calculated here?

The calculator simulates three user-entered debts with monthly interest, required minimum payments, and one extra payment pool. Avalanche targets the highest APR; snowball targets the smallest balance. The first assumption to check is: All balances, rates, and minimum payments are user-entered; no issuer or lender terms are looked up.

What does Avalanche payoff time mean for debt payoff?

Read the payment or payoff number first, then compare interest, balance, and timing outputs before changing a loan decision. Secondary values such as avalanche total interest, snowball payoff time, and snowball total interest are there to explain the primary answer, not to replace it.

What should I enter for Debt 1 balance?

Balance for the first debt. Enter 0 to exclude it. Use USD for this field. Keep units consistent with the labels shown in the form, stay within the documented minimum and maximum ranges, and enter percentages as whole percents, such as 6.5 for 6.5%, unless a field says otherwise.

How does Debt 1 APR change avalanche payoff time?

Annual rate for the first debt. Changing it can alter avalanche payoff time because the formula uses the submitted inputs together. Also compare APR period, compounding, fees, payment timing, taxes, insurance, and extra-payment assumptions.

Why does the debt payoff example show 28 for avalanche payoff time?

The default inputs produce 28 for avalanche payoff time. Treat that as a format and scale check, then replace every default value with your own inputs.

What should I compare before using the debt payoff payment result?

Compare the rate period, payment timing, fees, taxes, escrow items, payoff assumptions, and the actual quote or statement that governs the decision.

Sources

Last reviewed: 2026-05-26

  • Reviewed 2026-05-26
    Debt DestroyerFinancial Readiness, U.S. Department of Defense / USALearning. Avalanche strategy as paying extra toward the highest interest rate while making minimum payments, and snowball strategy as paying extra toward the smallest balance while making minimum payments.
    Scope
    U.S. government financial readiness education tool for debt avalanche and debt snowball strategies.
    Supports
    Avalanche strategy as paying extra toward the highest interest rate while making minimum payments, and snowball strategy as paying extra toward the smallest balance while making minimum payments.
  • Reviewed 2026-05-26
    What is the difference between credit counseling and debt settlement, debt consolidation, or credit repair?Consumer Financial Protection Bureau. No-advice, no-debt-relief, and credit-counseling limitations.
    Scope
    U.S. consumer guidance for debt help categories and debt-settlement cautions.
    Supports
    No-advice, no-debt-relief, and credit-counseling limitations.
  • Reviewed 2026-05-26
    NPer functionMicrosoft Learn. Monthly interest and fixed-payment payoff-period concepts used in the simulation.
    Scope
    Financial function documentation for fixed payment periods with constant periodic interest.
    Supports
    Monthly interest and fixed-payment payoff-period concepts used in the simulation.

Disclaimer

This borrowing calculator is for educational payment and payoff estimates only. It is not a lender quote, credit approval, legal disclosure, tax advice, or a substitute for reviewing contracts, fees, escrow items, and local rules.