Debt Snowball vs. Avalanche Calculator
Compare paying the smallest balance first with paying the highest APR first, using the same monthly extra payment.
The model keeps the same total monthly debt-payment budget, pays each active debt's entered minimum, and rolls freed payments plus the extra amount to the smallest balance (snowball) or highest APR (avalanche). It assumes fixed APRs and no new charges. Results are withheld if the entered payment budget does not retire the debts within the model horizon.
Snowball
Targets the smallest remaining balance first. It can create quicker account wins even when it does not minimize interest.
Avalanche
Targets the highest APR first. With the same payment behavior, this generally minimizes interest cost.
Behavior still matters
The mathematically cheaper plan is only useful if you can stick with it. Compare both outcomes before choosing.