About Our Debt Calculators
Last updated: August 5, 2026
DebtPaymentCalculators.com is a small set of free debt payoff calculators. There is no signup, no account, no email capture, and nothing to buy. You enter your balances, you get a month by month payoff schedule, and you leave.
Why this site exists
Most debt calculators that rank well are attached to something else. They sit on a lender's site, a credit union's education portal, or a debt settlement company's funnel, and the calculator is the front door to a product. That is not automatically bad, but it does shape what the tool shows you and what it quietly leaves out.
This site sells nothing. At launch it carries no display ads and no affiliate links. That means the calculator has no reason to steer you toward consolidation, refinancing, or a debt relief program. It just runs the arithmetic and shows the schedule.
How the calculators work
Every tool on this site runs the same core engine: a month by month simulation of your debts.
- Each debt accrues interest for the month at its own rate.
- The minimum payment is applied to every debt.
- Any extra money you have available goes to one target debt, chosen by the strategy you picked.
- When a debt reaches zero, its payment rolls into the next target. That rolling payment is what makes both the snowball and the avalanche accelerate over time.
The snowball strategy targets the smallest balance first. The avalanche strategy targets the highest interest rate first. The engine is identical in both cases. Only the sort order changes.
The interest assumption, stated plainly
These calculators apply a monthly periodic rate, calculated as your annual rate divided by twelve, to the balance at the start of each month. The Consumer Financial Protection Bureau notes that many card issuers instead calculate interest daily, using a daily periodic rate of the APR divided by 365 or 360 applied to an average daily balance, which compounds daily.
What that means for you. Because real issuers usually compound daily and your balance moves around inside a billing cycle, your actual statement will not match this tool to the penny. Treat every result here as a planning estimate, not a payoff quote. Your lender's figure is the one that counts.
Regulation Z, which governs these disclosures, expressly permits applying a monthly periodic rate to an average daily balance, so the monthly method used here is a recognised approach. It is simply not the only one, and it is not necessarily the one your card uses.
Where the numbers come from
Any interest rate figure quoted anywhere on this site is traceable to a primary source, with the date it was checked. As of the last review, the Federal Reserve's G.19 Consumer Credit release for May 2026, published July 8, 2026, reported an average rate of 20.94% across all commercial bank credit card accounts and 22.15% across accounts assessed interest.
On the question of which payoff strategy works better, the honest answer is that the two are measuring different things. The avalanche saves more interest arithmetically. The behavioural research is less tidy. Gal and McShane, publishing in the Journal of Marketing Research in 2012, analysed data from a debt settlement firm and found that closing debt accounts predicted eventual debt elimination regardless of the dollar balance of the accounts closed, while the dollar balance of closed accounts was not predictive once the fraction of accounts closed was controlled for. That is a real finding, and it is narrower than the claims often made about it online.
A note on a claim you will see elsewhere. A number of sites attribute specific adherence percentages to a Journal of Consumer Research study on the snowball method, and the numbers they quote contradict each other. We could not trace those figures to a published paper, so you will not find them on this site. The Gal and McShane paper above is in the Journal of Marketing Research, not the Journal of Consumer Research, and its abstract contains no such percentages.
Who builds this
This site is built and maintained by Cedrick Reese, operating as Ready Utilities. It is hand-coded static HTML, CSS and JavaScript with no frameworks and no third-party trackers, which is why it loads quickly and why nothing you type is transmitted anywhere.
Sources
- Board of Governors of the Federal Reserve System. Consumer Credit G.19, current release. Release date July 8, 2026, covering May 2026. Checked 2026-08-03.
- Consumer Financial Protection Bureau. What is a daily periodic rate on a credit card? Checked 2026-08-03.
- Consumer Financial Protection Bureau. How does my credit card company calculate the amount of interest I owe? Checked 2026-08-03.
- Consumer Financial Protection Bureau. Regulation Z, 12 CFR 1026.7, Periodic statement. Checked 2026-08-03.
- Gal, D. and McShane, B. B. (2012). Can Small Victories Help Win the War? Evidence from Consumer Debt Management. Journal of Marketing Research, 49(4), 487 to 501. Publisher record. Checked 2026-08-03.