Debt Avalanche Calculator
Free debt avalanche calculator for multiple debts. Pay highest interest first, see your payoff order, debt-free date, total interest saved, and the full month-by-month plan.
Example Scenarios
$19,400 Debt Load
Four debts · $700/mo budget
Late First Win
High-APR outlier · patience flag
$2,000 Lump Sum
One-time extra in month 1
Your Debts View Results
Avalanche Results
Payoff Order by Rate
Interest Destruction vs Minimums
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Avalanche vs Snowball on Your Debts
| Avalanche | Snowball | |
|---|---|---|
| Debt-free in | — | — |
| Total interest | — | — |
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Balance Timeline
Month-by-Month Plan
How This Is Calculated
Each month interest accrues at rate ÷ 12 on every balance. Minimums go to all debts; everything left in your budget attacks the highest APR. When a debt zeroes, its payment rolls into the next highest rate and the attack payment grows.
Everything behind the Debt Avalanche Calculator
Formulas, reference charts, and detailed answers — expand any section you need.
Debt Avalanche Calculator With Payoff Order by Rate
The debt avalanche calculator's payoff order runs by APR, and the interest each debt will cost before elimination is listed beside it, since interest destroyed is this method's scoreboard.
| Debt | APR | Balance | Eliminated | Interest It Costs |
|---|---|---|---|---|
| Credit card | 26.9% | $4,500 | Month 17 | $965 |
| Store card | 24.9% | $600 | Month 9 | $63 |
| Medical loan | 11% | $1,800 | Month 18 | $193 |
| Personal loan | 9.5% | $12,500 | Month 34 | $2,248 |
Illustrative $700 budget; your debts produce your own schedule instantly.
Debt Avalanche Calculator: Highest Rate First, Least Interest Paid
This debt avalanche calculator orders your debts by interest rate, sends every spare dollar at the most expensive one, and rolls each eliminated payment into the next highest rate. Enter your debts and monthly budget, and the debt avalanche calculator shows the payoff order, each elimination date, your debt-free date, and the total interest, the lowest figure any payoff order can produce on your budget.
Example: Four debts totaling $19,400 on a $700 monthly budget reach debt-free in month 34, with several hundred dollars less interest than snowball ordering.
How Does the Debt Avalanche Method Work?
The debt avalanche method pays minimums on everything and directs all extra money at the highest APR, regardless of balance size. When that debt zeroes, its full payment rolls to the next highest rate. Interest accrues fastest on the highest rate, so removing it first destroys interest at the maximum possible pace, which is why the avalanche is the mathematically cheapest path out of any debt set.
Debt Avalanche vs Snowball: The Savings, in Dollars
Debt avalanche vs snowball reduces to one number, and the calculator states it: the interest and time the avalanche saves on your exact debts against smallest-first ordering. With a high-APR outlier in the set the gap runs to real money; with similar rates it shrinks toward trivial, and either way the figure is shown rather than argued. The mirror comparison lives on the Debt Snowball Calculator for those weighing the motivational trade.
Debt Avalanche Calculator and the Late First Win
The avalanche's honest weakness: when the highest rate sits on a large balance, the first payoff can be a year away, and plans without early wins get abandoned. The calculator flags a late first win and prices the hybrid option, clearing one small balance first for momentum, with the exact interest cost of that detour shown. Optimal is only optimal if you finish, and the flag exists to keep the finish likely.