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Debt Consolidation Calculator

Kaushik RabadiyaCreated by Kaushik RabadiyaLast updated: September 26, 2026

Debt consolidation instantly calculates results using conamount, confee, confeepre. Use the calculator above for instant answers in your browser.

Managing multiple high-interest credit cards and personal loans can quickly become overwhelming. Our Debt Consolidation Calculator helps you determine whether combining your existing balances into a single new loan will lower your monthly payments, reduce total interest, and simplify your financial life.

How Debt Consolidation Math Works

The calculation is based on comparing two financial paths: continuing to pay multiple separate debts versus securing a single consolidation loan. First, the tool aggregates your total outstanding balances (TotalDebt = Debt1 + Debt2 + ... + Debt6) and sums your current monthly payments. Next, it calculates the monthly payment for the new consolidation loan using standard amortization math: P = L [ c(1 + c)^n ] / [ (1 + c)^n - 1 ], where L is the loan amount, c is the monthly interest rate, and n is the total number of months. Finally, it factors in any upfront or rolled-in loan origination fees (ConFee) to reveal your true net interest savings and cash flow changes.

Worked Calculation Example

Imagine you have three separate debts. Debt 1 is a credit card balance of $5,000 at 22% APR with a $180 monthly payment. Debt 2 is a store card balance of $3,000 at 26% APR with a $120 monthly payment. Debt 3 is a personal loan balance of $10,000 at 12% APR with a $250 monthly payment. Your total debt is $18,000, and your combined current monthly payments equal $550. You decide to apply for a debt consolidation loan of $18,000 with a 4-year (48-month) term at an 11% fixed APR, plus a 3% upfront origination fee ($540). Using the amortization formula, your new monthly payment on a $18,540 total financed amount (including the fee) comes out to approximately $479 over 48 months. By switching, your monthly cash flow improves by $71, and you drastically cut down the exorbitant 22% to 26% interest bleeding from your credit cards.

Best Practices for Debt Consolidation

Avoid running up new balances on your freshly paid-off credit cards, as this can easily double your financial trouble. Always check whether your consolidation loan carries prepayment penalties or hefty origination fees that might wipe out your projected interest savings. Finally, aim for a consolidation loan APR that is significantly lower than your weighted average current debt APR to ensure the math genuinely works in your favor.

FAQs

Does debt consolidation hurt your credit?

Initially, applying for a debt consolidation loan results in a hard credit inquiry, which can cause a minor, temporary drop in your credit score. However, successfully paying off revolving credit card balances lowers your overall credit utilization ratio and establishes a consistent on-time payment history, which generally boosts your credit score significantly over the long term.

Which banks offer debt consolidation loans?

Many traditional national banks, credit unions, and reputable online fintech lenders offer personal loans specifically designated for debt consolidation. Credit unions often provide lower interest rates and more flexible terms for members with fair to good credit. It is always wise to shop around, pre-qualify with multiple institutions, and compare their APRs and origination fees before committing.

How to calculate a debt consolidation loan?

To calculate a debt consolidation loan, you first sum up all your current balances and weighted interest rates. Then, you use an amortization formula based on the new loan amount, your approved annual percentage rate (APR), and your chosen repayment term in months. Finally, you compare the new monthly payment and total lifetime interest against what you are currently paying to measure your savings.

Based on 1 source

Formula verified against Standard financial formulas — all calculations use deterministic, standards-based formulas.

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