Formulas and 2026 figures checked & updated: July 2026
How to Use the Debt Consolidation Loan Calculator
- Add each debt you're considering consolidating, using the '+ Add a debt' button for each card or loan.
- Enter the balance, APR, and minimum monthly payment for every debt you list.
- Enter the interest rate you expect to qualify for on the new consolidation loan.
- Enter the proposed loan term in months — most consolidation loans run 24 to 84 months.
- Enter the origination fee percentage the lender charges, which gets added to the financed amount.
- Compare the total interest of paying off your current debts individually versus the new consolidated loan, along with the change in your monthly payment.
- Read the verdict. Example: three debts totaling $12,200 at a blended rate near 21% APR, consolidated into a 48-month loan at 11.5% with a 2% origination fee, typically cuts total interest by thousands of dollars even after the fee is added to the balance.
What This Calculator Does
The Debt Consolidation Loan Calculator compares the cost of paying off your current debts one by one at their existing minimum payments against rolling them into a single new debt consolidation loan. It's built for anyone juggling multiple credit cards or loans who wants a clear, side-by-side number rather than a rough guess about whether consolidating actually saves money.
The comparison is driven by two sets of inputs: your current debts (balance, APR, and minimum payment for each) and the terms of the proposed consolidation loan (rate, term, and origination fee). It accounts for the new loan's origination fee, which is typically 1%–8% of the loan amount and gets rolled into the financed balance, then shows the monthly payment change and total interest saved — or lost — by consolidating. As a rule of thumb, consolidation tends to pay off when your blended current APR is several points higher than the new loan's rate; credit cards commonly carry APRs of 20%–25%+, while well-qualified borrowers can often get personal loan rates in the 8%–15% range.
People turn to this calculator when they're deciding between paying down several high-interest cards individually, using a balance transfer card, or taking out a personal loan to combine everything into one fixed payment. It's especially useful before applying for a consolidation loan, since the hard credit inquiry and origination fee only make sense if the math actually works in your favor — this tool lets you check that before you apply.
Formula
New Monthly = (Total Balance + Fee) × [r(1+r)ⁿ] / [(1+r)ⁿ − 1]The combined balance of all selected debts, plus the origination fee, is amortized at the new loan's rate and term. This is compared against the total interest of paying each original debt at its own minimum payment.
- FeeOrigination fee, added to the financed loan amount
- rNew loan's monthly interest rate
- nNew loan term in months
Examples
Example 1: $12,200 across three high-rate debts
Two credit cards (24.9%, 21.9%) and a personal loan (14%) consolidated into a 48-month loan at 11.5% with a 2% fee.
The blended rate on the original debts is well above 11.5%, so consolidating typically cuts total interest — even after the origination fee.
Example 2: A single high-rate card, minimal savings
$6,000 balance on one card at 22.9% APR with a $180 minimum payment, consolidated into a 36-month loan at 18% APR with a 5% origination fee.
Because the new rate is only a few points lower and the origination fee adds $300 to the financed balance, the interest savings are modest — worth doing mainly for the fixed payoff timeline, not dramatic interest savings.
Example 3: When consolidation backfires
$8,000 in debt at a blended 12% APR, consolidated into a 72-month loan at 13.5% APR with a 4% origination fee.
Because the new rate is actually higher and the longer term adds more months of interest, the calculator shows the current debts cost less — a reminder to always compare the new rate against your actual blended rate, not just against the highest card.
Key Terms Explained
- APR (Annual Percentage Rate)
- The yearly cost of borrowing shown as a percentage, including the interest rate plus certain fees. APR lets you compare loans on an equal footing and is usually a bit higher than the plain interest rate.
- Minimum Payment
- The smallest amount a card issuer requires each month (often about 2% of the balance). Paying only the minimum maximizes interest and payoff time.
- Amortization
- Paying off a loan through fixed payments over time. Early payments are mostly interest; later payments are mostly principal as the balance shrinks.
- Balance Transfer
- Moving a balance from a high-rate card to one with a low or 0% intro APR, usually for a one-time fee of 3–5% of the amount moved.
- Credit Utilization
- The percentage of your available credit that's currently in use — total balances divided by total limits. It's one of the biggest factors in most credit scoring models, and lower is generally better.
Continue Your Financial Planning
Methodology
Current debts: each is simulated paying only its own minimum payment until paid off, accruing interest monthly at APR ÷ 12, and the interest across all debts is summed. Consolidation loan: the combined balance plus any origination fee is amortized at the new fixed rate over the chosen term using the standard loan payment formula, and the resulting total interest is compared against the current-debts total to determine the dollar savings (or added cost) of consolidating.
Frequently Asked Questions
How is debt consolidation different from a balance transfer?+
A balance transfer moves credit card debt to a new card, usually with a temporary 0% intro APR. A debt consolidation loan is a fixed-term installment loan (often an unsecured personal loan) that pays off multiple debts at once, replacing them with one fixed monthly payment.
When does debt consolidation make sense?+
It makes sense when the new loan's rate is meaningfully lower than the blended rate on your current debts, and when a single fixed payment would help you stay on track. It's most useful for consolidating multiple high-rate credit cards into one predictable monthly bill.
Does consolidating hurt my credit score?+
There's often a small, temporary dip from the hard inquiry and new account, but consolidating can help longer-term by lowering your credit utilization on cards and establishing a positive payment history on the new loan.
What credit score do I need for a debt consolidation loan?+
Lenders vary, but many personal loan lenders look for a credit score in the mid-600s or higher to offer competitive rates; scores below that range may still qualify but typically at higher APRs. A higher score generally unlocks lower rates, which is what makes consolidation worthwhile in the first place.
Is debt consolidation a good idea if I have a lot of credit card debt?+
It can be, especially if your current cards carry high APRs and you qualify for a meaningfully lower fixed rate. The main risk is running the cards back up after consolidating, since that leaves you with both the new loan payment and fresh card balances — consolidation works best paired with a plan to stop adding new debt.
Can I consolidate debt with bad credit?+
It's possible but harder — lenders may offer higher rates that reduce or eliminate the interest savings, and some borrowers with poor credit may not qualify for an unsecured personal loan at all. In that case, a secured loan, credit counseling, or a debt management plan may be worth exploring as alternatives.
Can I save my results?+
Yes. Use “Save results” to store a snapshot. Without an account it remains in this browser. If you log in, saved scenarios sync securely to your SmartRates account so they are available on your other devices.
How do I share my calculation?+
Click “Share” in the toolbar to copy a link (or open your device’s share sheet). The link encodes your exact inputs, so whoever opens it sees the calculator pre-filled with the same numbers and the same result.
Can I email my calculator results?+
Yes. Click “Email results” to open your default email application with the current inputs, results, and calculator link already included. Review the message and choose the recipient before sending.
Can I export or print my results as a PDF?+
Yes. Click “Export PDF” to open a clean, printable summary of your inputs and results that you can save as a PDF or print. It includes a timestamp and a link back to the calculator.
How accurate are the calculator results?+
The arithmetic follows the formula and assumptions documented on this page. The result is still an estimate because actual rates, fees, taxes, timing conventions, eligibility rules, and provider calculations can differ. Use figures from your official quote, statement, contract, or tax form before making a financial decision.
Which inputs have the biggest effect on the result?+
Rate, time, starting balance, recurring payments or contributions, and fees usually have the largest effects. Change one input at a time to create a conservative, expected, and optimistic scenario instead of relying on a single forecast.
Are taxes, fees, and inflation included?+
Only when they appear as an input or are explicitly described in the methodology. Do not assume an omitted cost is zero. Review the formula and methodology sections to see exactly what is included before comparing the result with an outside quote.
Can this calculator predict future rates or returns?+
No. A calculator projects the assumptions entered; it cannot predict market returns, inflation, variable interest rates, tax-law changes, or provider decisions. Rerun the calculation with several assumptions to understand the range of possible outcomes.
Why might my lender, bank, broker, or tax software show a different result?+
Professional systems may use daily timing, transaction dates, compounding conventions, rounding rules, account-specific fees, credits, eligibility details, or regulations that a general-purpose calculator cannot know. A small difference can be rounding; a large difference usually means an assumption or included cost is different.
Disclaimer: Calculations are for informational purposes only and do not constitute professional financial advice. Please consult with a certified professional before making financial decisions.