Everyday
Debt Avalanche Calculator
Estimate payoff time for up to three debts using a fixed monthly budget and the debt avalanche method, which targets the highest APR first.
- Free to use
- Runs in your browser
- Level A · Standard formula
- Last reviewed 2026-08-16
Calculator guide
How to use the Debt Avalanche Calculator
Estimate payoff time for up to three debts using a fixed monthly budget and the debt avalanche method, which targets the highest APR first. Enter the requested values and select Calculate. The result and supporting values are produced locally in your browser.
Formula
Worked example
With three debts and a $200 monthly extra payment, the calculator rolls the fixed budget toward the highest-APR remaining debt each month.
What to keep in mind
- This is an educational payoff simulation; lender minimum-payment rules, fees, statement timing, and compounding can differ.
- The avalanche method prioritizes interest rate and generally aims to reduce interest cost.
Methodology
This calculator uses deterministic arithmetic and performs the calculation locally in your browser. Verify assumptions, units, and source values for your specific use case.
Review standard: Level A · Standard formula. How calculator reviews work.
Frequently asked questions
What does this calculator calculate?
Estimate payoff time for up to three debts using a fixed monthly budget and the debt avalanche method, which targets the highest APR first.
How is the result calculated?
Monthly budget = Minimum Payments + Extra; target the highest APR after minimums.
Can I use the result for an important decision?
Use the result as a calculation aid and verify the inputs, assumptions, and applicable professional or regulatory requirements before relying on it for an important decision.
Does CalculateMeasure store the values I enter?
The calculator performs its arithmetic in your browser. The calculator itself does not need to send your entered values to a server to produce the result.