Debt Payoff Calculator — Avalanche vs Snowball | Techovra
Debt Payoff Calculator
List your debts, add what you can pay extra, and compare the avalanche and snowball strategies side by side.
Plan Your Debt Payoff
Add each debt, then an extra monthly amount. Results update as you type.
If you're carrying more than one debt, a credit card, a personal loan, maybe both, the order you attack them in changes how much you pay in total, sometimes by tens of thousands of rupees. This debt payoff calculator takes every debt you enter, along with any extra amount you can put toward payoff each month, and shows you exactly how long each strategy takes and what it costs.
What this tool does
List each debt's balance, interest rate and minimum payment, then add whatever extra you can afford each month. This multiple debt payoff calculator runs that extra amount against your debts in two different orders and shows you the payoff timeline and total interest for each. When a debt is cleared, its minimum payment rolls into the next one.
Avalanche vs snowball
There are two standard strategies for paying off multiple debts, and they optimise for different things. Our guide on debt avalanche vs snowball covers the behavioural side of the choice in more depth.
The debt avalanche method puts every spare rupee toward the debt with the highest interest rate first, while paying only the minimum on everything else. Once that debt is cleared, you roll its full payment into the next-highest-rate debt, and so on. This is the mathematically optimal method: it minimises total interest paid, full stop.
The debt snowball method puts every spare rupee toward the smallest balance first, regardless of rate, then rolls that payment into the next-smallest balance. It costs slightly more in total interest than the avalanche method, but the psychological win of clearing an entire debt quickly is why some people stick with it when the avalanche method feels too slow to show progress. Use the debt avalanche calculator and debt snowball calculator views above to see the difference for your own debts.
Why the interest rate gap matters so much in India
The case for avalanche is unusually strong here, because the gap between debt types is large. Credit card interest in India commonly runs 30%-45% p.a., while a personal loan sits closer to 10%-15% p.a. and a car or home loan lower still. That gap means every rupee of extra payment does very different amounts of work depending on where you send it.
Put ₹10,000 extra toward a credit card balance at 40% p.a. and you avoid roughly ₹4,000 a year in interest on that amount. Put the same ₹10,000 toward a personal loan at 12% p.a. instead, and you avoid roughly ₹1,200 a year. Same money, same discipline, nearly 3.3 times the benefit just from choosing the right debt to attack first. This is the entire logic behind the avalanche method, and it's why credit card debt should almost always be the first target when you're juggling more than one balance. If your credit card is one of the debts, our credit card minimum payment calculator shows how little the minimum due actually does to clear it, and before you take on any new borrowing while working through this plan, run your numbers through the debt-to-income (DTI) calculator to see how lenders will read your current obligations.
Frequently Asked Questions
Should I always use the avalanche method?
Mathematically, yes. It minimises total interest. But if you have several small debts and the avalanche method means your highest-rate debt takes months to see any real progress, the snowball method's quick wins can be worth the small extra cost if it's what keeps you consistent. Run both through the calculator and see the actual rupee difference for your own debts before deciding.
Does this calculator account for different interest rate types, like flat vs reducing?
It assumes reducing-balance interest for loans and standard revolving interest for credit cards, which covers most common debt types in India. If a lender has quoted you a flat rate, run it through the interest rate calculator first to find the real reducing-balance rate.
This shows you the interest math. Your actual payoff timeline depends on your lender's terms and any changes to your balances or rates.