Debt Optimization Engine
Enter every debt you owe and how much you can put toward debt each month. The engine compares five payoff strategies on your actual numbers — snowball, avalanche, extra payment, balance transfer, and a consolidation loan — so you can see which one gets you debt-free soonest and for the least interest.
Your Debts
Add each credit card, loan, or balance separately. Not sure of a minimum payment? Leave it blank and we'll estimate it.
How the Debt Optimization Engine works
Instead of running one calculator at a time, this tool takes your full list of debts and your monthly debt budget and simulates each payoff strategy month by month. Interest accrues on every balance, minimum payments are applied, and any money left in your budget is directed to a single "target" debt chosen by the strategy. When a debt is paid off, its old payment rolls into the next target — the effect that makes structured plans finish faster.
The strategies compared
- Minimum payments only — the baseline. Every other result is measured against this.
- Debt snowball — extra money goes to the smallest balance first. Often costs slightly more interest but produces faster early wins.
- Debt avalanche — extra money goes to the highest APR first. Mathematically minimizes total interest for a given budget.
- Extra payment — the avalanche order plus an additional amount on top of your budget, so you can see what stretching a little further buys you.
- Balance transfer — assumes your balances move to a promotional-APR card with a one-time fee, then revert to a standard rate.
- Consolidation loan — assumes a single fixed-rate installment loan replaces your balances.
Key assumptions
Monthly compounding, fixed interest rates, on-time payments every month, and no new charges added to any balance. Minimum payments, when not provided, are estimated as the greater of about 2% of the balance or roughly interest plus 1% of principal. Balance transfer and consolidation scenarios use editable default rates and fees and treat every balance as eligible, which is a simplification. See the calculator methodology for the full formulas.
Frequently Asked Questions
You enter all of your debts and your total monthly debt budget once. The engine then runs the same set of debts through several payoff strategies — snowball, avalanche, extra payment, balance transfer, and a consolidation loan — and shows the payoff date, total interest, and estimated savings for each so you can compare them side by side.
It identifies which strategy minimizes estimated interest under the numbers you entered, but it does not claim any strategy is universally best. Balance transfer and consolidation results depend on rates and fees you may or may not qualify for, and the snowball method can be the right choice if faster early wins help you stay consistent.
No. Every calculation runs in your browser with JavaScript. Your balances, rates, and payments are never transmitted to a server or stored, unless you choose to email yourself a copy of your plan.
Monthly compounding, fixed interest rates, on-time payments, and no new charges. Balance transfer results assume a promotional APR and one-time transfer fee you enter, and consolidation results assume a fixed-rate installment loan. Real offers vary — always check the actual terms before applying.