Calculatrice de consolidation de dettes

Debt Consolidation Calculator

Debt consolidation rolls multiple debts into a single loan with one fixed payment, typically at a lower interest rate. This calculator computes the total cost of your current debts and the total cost of a consolidation loan, then shows you exactly how much you would save or lose by consolidating. The math matters more than the concept — lower rate and shorter term saves money; lower rate but much longer term often does not.

How Debt Consolidation Savings Are Calculated

Two scenarios are compared:

Current debts total cost: For each debt, calculate months to payoff at its current payment and rate using the standard amortization formula. Sum the total interest across all debts.

Consolidation loan total cost: Apply the amortization formula to the combined balance at the new rate and chosen term.

Net savings = Total interest (current debts) — Total interest (consolidation loan) — Origination fee

If the consolidation rate is lower but the term is much longer, the extra months of interest can wipe out the rate savings. A $20,000 consolidation loan at 10% over 60 months costs $5,455 in interest — more than the same loan at 10% over 36 months ($3,162). Matching or shortening the term while lowering the rate is the winning formula.

Worked Examples

Scenario 1 — Credit card consolidation, strong credit

Current debts: Credit card A $9,000 at 23%, Credit card B $6,500 at 20%, medical bill $4,500 at 18%. Total balance: $20,000. Total monthly payments: $660. Total interest at current trajectory: $7,980. Consolidation loan: $20,000 at 9.5% APR, 48 months. Payment: $504/month. Total interest: $4,190. Monthly savings: $156. Total interest savings: $3,790. Payoff time: same 48 months vs. roughly 45 months prior — nearly neutral on timeline.

Scenario 2 — Debt consolidation with origination fee

Current debts: 3 credit cards totaling $15,000 at average 21% APR. Total interest at current pace: $5,200. Consolidation loan: $15,000 at 11% APR, 36 months, with 3% origination fee ($450). Payment: $491/month. Total interest: $2,665. Net savings: $5,200 — $2,665 — $450 fee = $2,085.

Scenario 3 — Wrong consolidation (term too long)

Current debts: 2 credit cards totaling $12,000 at 22% average. Paying $400/month total. Payoff: 38 months. Total interest: $3,200. Consolidation loan offered: $12,000 at 13% APR, 84 months. Payment: $199/month. Total interest: $4,700. Despite the lower rate, the 7-year term costs $1,500 more than just paying the cards off. The lower payment is appealing but the total cost is worse.

Consolidation Savings Reference Table

Rate reductions of 5%+ on 36-48 month terms consistently produce meaningful savings. Extending the term beyond 60 months erodes the benefit quickly.

When to Use This Calculator

• You have 3 or more debts with different rates and want to see whether a single loan beats the combined cost
• Your total unsecured debt is $8,000 or more and you have good enough credit (680+) to qualify for a consolidation rate below 12%
• You are overwhelmed by multiple due dates and minimum payments and want to simplify without necessarily saving money
• You want to compare a personal consolidation loan against a balance transfer card to find the lower total cost
• You are considering a nonprofit debt management plan (DMP) and want to model what a reduced consolidated rate would actually save

Common Mistakes to Avoid

1. Extending the consolidation term far beyond your current payoff timeline. If you are 3 years from being debt-free and you take a 5-year consolidation loan, you have added 2 years of interest payments. Match or beat your current payoff date.
2. Consolidating low-rate debt alongside high-rate debt. If you include a 5% car loan in a consolidation that sets everything at 11%, you just increased the rate on your car loan. Only consolidate debts where the new rate is lower.
3. Running up new credit card balances after consolidating. This is the most common and most damaging mistake. Consolidating $20,000 in cards and then accumulating $10,000 in new card debt within 2 years is how people end up with $30,000 in debt instead of $20,000. Close or freeze the accounts.
4. Ignoring origination fees in the comparison. A 2-5% fee on a $20,000 loan is $400-$1,000 off the top. If the interest savings are only $1,200, the actual net benefit drops to $200-$800 after the fee. Always include fees in your break-even calculation.

Current Context for 2026

Personal loan rates for debt consolidation in early 2026 range from about 7.5% to 22% depending on credit score, with lenders like credit unions offering the lower end of that range. Average credit card APRs remain above 22% following multiple years of Fed rate hikes. This spread — 22% card debt vs. 9-12% consolidation loans for creditworthy borrowers — makes 2026 one of the stronger environments for consolidation savings in recent years. However, origination fees have also risen; many online lenders now charge 3-6%, so net savings calculations need to account for those costs. Borrowers with scores below 660 may struggle to find consolidation rates below 18%, which limits the benefit. Nonprofit credit counseling agencies (NFCC member agencies) can negotiate rates of 7-10% on debt management plans for borrowers who do not qualify for bank loans.

Tips

1. Pre-qualify with 3-5 lenders using soft credit pulls before formally applying — rate differences of 3-4% on $20,000 are worth 30 minutes of comparison shopping
2. Choose the shortest consolidation term where the monthly payment fits your budget — 36 months at 10% saves roughly $2,300 more than 60 months at the same rate on a $15,000 loan
3. Close or put a hard freeze on the credit cards you consolidate so the credit lines do not become a temptation — this is the most common reason consolidation fails
4. Check nonprofit credit counseling agencies (look for NFCC members) if your score is below 680 — their debt management plans often achieve rates of 7-10% without a loan application
5. Factor origination fees into your comparison — a “low fee” lender charging 1% and a “no fee” lender charging 1% more in rate are often identical in total cost; use this calculator to compare the actual numbers
6. After consolidating, redirect the monthly savings directly to an emergency fund to avoid running up new debt when unexpected expenses hit

Related Calculations

• Personal Loan Calculator: Calculate the monthly payment and total cost for any consolidation loan amount, rate, and term
• Balance Transfer Calculator: Compare moving high-rate balances to a 0% promotional card against taking a consolidation loan
• Debt Payoff Calculator: Model your current debts with extra payments to see if you can beat a consolidation loan’s total cost
• Debt Snowball Calculator: Check whether an aggressive payoff strategy on your current debts outperforms consolidating
• Debt-to-Income Ratio Calculator: Verify your DTI before applying so you know whether lenders will approve the consolidation loan amount you need