Debt Consolidation Calculator

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Your details

$
%
$
%
yrs

Interest you could save

A$6,380

vs. keeping your current debts at 22.0%

New monthly payment

A$517

New loan interest

A$4,812

Current payoff time

52 mo

Current total interest

A$11,192

Consolidation helps most when the new rate is meaningfully lower and you don't stretch the term so far that lower payments cost more interest overall. Watch for origination fees.

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A debt consolidation calculator compares keeping your existing debts against rolling them into a single new loan. Enter your total balance, the average rate you're paying now, your current monthly payment, and the rate and term of a consolidation loan. FinCalcs shows your new monthly payment, how much interest you'd pay each way, and the potential savings — so you can see at a glance whether consolidating actually helps or just stretches the debt out.

How to use the Debt Consolidation Calculator

  1. 1Enter your total debt balance across all accounts.
  2. 2Enter the average APR you're currently paying.
  3. 3Enter the total you pay toward these debts each month.
  4. 4Enter the consolidation loan's APR and term, then compare the results.

What is Debt Consolidation?

Debt consolidation means combining several debts — typically high-interest credit cards — into a single new loan with one monthly payment. The appeal is twofold: a lower interest rate that reduces the total you pay, and the simplicity of one payment instead of juggling many. A consolidation loan, a balance-transfer card, or a personal loan are the common tools. But consolidation isn't automatically a win, and the math is what tells you whether it helps.

The comparison has two sides. On the current side, the calculator estimates how long your existing debts take to clear at your present monthly payment and how much interest that costs. High-rate revolving debt is expensive precisely because so much of each payment goes to interest, and if your payment barely exceeds the monthly interest, the balance can take many years — or effectively never — to clear. On the new side, it works out the fixed monthly payment and total interest for a consolidation loan at a lower rate over a set term.

The key insight is that two things drive the outcome: the interest rate and the repayment term. A lower rate saves money. But a longer term lowers the monthly payment by spreading it out — and stretching the term too far can mean you pay more interest overall even at a lower rate, because you're borrowing for longer. The best consolidations pair a meaningfully lower rate with a term that isn't dramatically longer than your current payoff timeline.

There are practical cautions. Consolidation loans often carry origination fees (commonly 1–8%), and balance-transfer cards charge a transfer fee and revert to high rates after the promo period. Consolidation also only treats the symptom; if the spending that created the debt continues, you can end up with both the loan and fresh card balances. Used deliberately — lower rate, disciplined term, and no new debt — consolidation can save real money and simplify your finances. This calculator helps you confirm the numbers before you commit.

The formula

Current payoff months = −ln(1 − i·B ÷ P) ÷ ln(1 + i)
Current interest = P × months − B

New loan payment = B · j ÷ (1 − (1 + j)^−n)
Interest saved = Current interest − New loan interest

where B = balance, P = current payment, i = current monthly rate, j = new monthly rate, n = new term in months

Frequently Asked Questions

Will consolidating my debt save me money?+

It saves money when the new loan's rate is meaningfully lower and you don't extend the term so far that the extra years of interest outweigh the lower rate. This calculator compares both interest totals so you can see the net effect.

Does a lower monthly payment mean I'm saving?+

Not necessarily. A longer term lowers the monthly payment but can increase total interest. Look at total interest paid, not just the monthly figure, to judge whether consolidation truly helps.

What fees come with debt consolidation?+

Personal consolidation loans often charge an origination fee (around 1–8%), and balance-transfer cards charge a transfer fee (typically 3–5%) and revert to a high rate after the promo period. Factor these in.

Is debt consolidation a good idea?+

It can be, if you secure a lower rate, keep the term reasonable, and stop adding new debt. It's less helpful if the rate isn't much better or if overspending continues, since it treats the symptom, not the cause.

This calculator is for informational and educational purposes only. Results are estimates and should not be considered financial advice. Always consult a qualified financial professional before making financial decisions.

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