Debt Consolidation Calculator

Calculate the impact of consolidating multiple debts into a single loan. Compare interest savings and payoff timelines.

Current Debts

Debt Name

Balance

Interest Rate

Min Payment

Debt Name

Balance

Interest Rate

Min Payment

Consolidation Loan Terms

New Interest Rate

Loan Term

Consolidation Fees (Optional)

Origination fees, balance transfer fees, etc.

What Is a Debt Consolidation Calculator?

A debt consolidation calculator compares the total cost of keeping your current multiple debts against combining them into a single consolidated loan. It analyzes your existing debts with their individual balances, interest rates, and minimum payments, then calculates what a new consolidated loan would cost at the terms you specify.

The calculator reveals whether consolidation truly saves money by comparing monthly payments, total interest paid, and payoff timelines. Not all consolidation scenarios are beneficial. Sometimes the math shows that keeping current debts and paying them aggressively costs less than consolidating, especially when consolidation fees are high or the new rate is not significantly lower.

How the Comparison Works

For each existing debt, the calculator simulates month-by-month payments: each month's interest is computed on the remaining balance, and the minimum payment reduces the principal by whatever remains after the interest charge. This produces the total interest and payoff timeline for each individual debt.

For the consolidated loan, the calculator uses the standard amortization formula:

Monthly Payment = P x [r(1+r)^n] / [(1+r)^n - 1]

Where P is the total consolidated amount (sum of all balances plus any fees), r is the monthly interest rate, and n is the total number of payments. The difference between the two scenarios shows your potential savings or additional costs.

How to Use This Calculator

Enter each existing debt. Add the name, balance, interest rate, and minimum payment for every debt you want to consolidate. Click the add button for additional debts.
Set consolidation loan terms. Enter the interest rate and repayment term a lender has offered you, along with any origination or transfer fees.
Review the recommendation. The calculator shows whether consolidation is recommended based on monthly savings and total interest comparison.
Compare the details. Review the monthly payment difference, total interest comparison, and payoff timeline for both scenarios.

Worked Examples

Example 1: Two Credit Cards

Credit Card 1: $5,000 at 18%, $150/month. Credit Card 2: $3,000 at 22%, $90/month. Consolidation at 12% for 5 years with no fees. Current total monthly: $240. Consolidated monthly: $178. Monthly savings: $62. Total interest savings: approximately $1,200. Consolidation is recommended.

Example 2: Mixed Debts with Fees

Credit Card: $8,000 at 24%, $200/month. Personal Loan: $5,000 at 15%, $165/month. Auto Loan: $12,000 at 7%, $350/month. Consolidation at 10% for 7 years, $500 fee. The weighted average current rate is 13.6%. Consolidation at 10% saves on interest despite the fee, but extends the auto loan payoff significantly.

Example 3: Unfavorable Consolidation

Two debts totaling $6,000 at an average of 15%, with aggressive $400/month payments. Consolidation offered at 14% for 5 years. Current payoff time: 17 months. Consolidated payoff: 60 months. Despite the lower rate, the extended term means more total interest. Keeping current payments is better.

Common Use Cases

Credit card debt reduction: Consolidate multiple high-interest credit card balances into a single lower-rate personal loan.
Simplified payments: Reduce payment complexity from managing five or six bills to one predictable monthly payment.
Cash flow improvement: Lower the combined monthly payment to free up budget room for other financial goals.
Pre-approval evaluation: Before applying for a consolidation loan, verify that the offered terms actually save money compared to your current situation.

Tips and Common Mistakes

Compare the total cost, not just the monthly payment. A lower monthly payment with a longer term can cost more in total interest. Always look at both the monthly savings and the total interest comparison before deciding.

Do not consolidate and then run up new balances. The most common consolidation failure is paying off credit cards with a consolidation loan and then charging them up again. Close or lock the cards you pay off, or at least commit to not using them.

Account for all fees in your comparison. Origination fees, balance transfer fees, and closing costs reduce or eliminate savings. This calculator includes fees in the consolidated loan amount for an accurate comparison.

Shop multiple lenders for the best rate. Consolidation loan rates vary significantly between lenders. Getting quotes from three to five lenders can result in rates one to three percentage points lower, which translates to substantial savings over the life of the loan.

Frequently Asked Questions

What is debt consolidation?

Debt consolidation combines multiple debts into a single loan, ideally at a lower interest rate. Instead of managing several payments with different due dates and rates, you make one monthly payment to one lender. Common methods include personal loans, balance transfer credit cards, home equity loans, and debt management plans. The goal is to reduce total interest costs and simplify repayment.

When does debt consolidation make financial sense?

Consolidation makes sense when the new loan's interest rate is lower than the weighted average of your current debts, the monthly payment fits your budget, and you can commit to not accumulating new debt. It works best when you have a good credit score that qualifies you for favorable rates, and when your current debts carry high interest rates like credit cards at 18% or more.

What are the risks of debt consolidation?

The main risks include extending your repayment period which can increase total interest even at a lower rate, accruing new debt on the cards you paid off, paying origination fees that offset savings, and potentially putting up collateral like your home. Some people consolidate but continue spending, ending up with more total debt than before they consolidated.

How does the weighted average interest rate work?

The weighted average rate accounts for the different balances on each debt. A $10,000 balance at 20% has more impact than a $1,000 balance at 25%. The calculation multiplies each balance by its rate, sums those products, and divides by the total balance. If your consolidation rate is below this weighted average, you will likely save on interest.

Should I use a home equity loan for debt consolidation?

Home equity loans offer lower rates because your home serves as collateral, but this converts unsecured debt to secured debt. If you cannot make payments, you risk foreclosure. Home equity consolidation works well for disciplined borrowers who will not run up new credit card balances, but the stakes are higher than with an unsecured personal loan.

What credit score do I need for a consolidation loan?

Most personal consolidation loans require a credit score of 660 or higher for competitive rates. Scores above 720 qualify for the best rates, typically 7 to 12 percent. Scores between 580 and 659 may still qualify but at higher rates of 15 to 25 percent, which may not improve on existing credit card rates. Check multiple lenders since requirements and rates vary.

How do consolidation fees affect savings?

Origination fees typically range from 1 to 8 percent of the loan amount. A 3% fee on a $10,000 consolidation loan adds $300 to your balance. Factor these fees into the total cost comparison. If fees plus consolidated interest exceed what you would pay on current debts, consolidation does not save money. This calculator includes fees in the comparison automatically.

What is the difference between consolidation and settlement?

Debt consolidation pays your debts in full through a new loan at better terms. Debt settlement negotiates with creditors to accept less than the full amount owed. Settlement damages your credit score significantly, may trigger tax liability on forgiven amounts, and can result in lawsuits from creditors. Consolidation preserves your credit and fulfills your original obligations.