What Debt Consolidation Actually Does
Debt consolidation replaces several separate debts — credit cards, a personal loan, maybe a store card — with a single new loan. Your total amount owed doesn't shrink the moment you consolidate; what can change is the interest rate, the number of payments you juggle each month, and, if the new rate is genuinely lower, the total interest you'll pay before you're debt-free. The two most common funding sources are unsecured personal loans (no collateral, higher rates, faster approval) and secured options like a home equity loan or cash-out refinance (collateral required, generally lower rates, more paperwork and risk if you fall behind).
How This Calculator Works
For your current debts, the calculator runs each one through the standard amortization formula at its own balance, APR, and payment to find how much total interest it would cost and how many months it would take to clear, then adds those figures together. For the new loan, it uses the same monthly-payment formula lenders use — M = P × [r(1+r)n] / [(1+r)n − 1] — where P is the loan amount, r is the monthly rate, and n is the number of payments.
The part most debt consolidation calculators skip is the fee. If your lender charges an origination fee or points, that amount is typically deducted from what you actually receive — but you still owe and pay interest on the full loan amount. That gap between what you borrow and what you receive is exactly what "Real APR" measures: it's the interest rate that would make your payment stream equal to the smaller amount you actually got, solved with the same present-value method used on Truth-in-Lending APR disclosures. A loan advertised at 9% with a hefty fee can have a real cost well above 9% — this calculator surfaces that number instead of hiding it in the fine print.
Understanding Each Input
Debt name, balance, payment, APR: enter every debt you're considering rolling into the new loan — most people include credit cards, medical bills, and other personal loans here, but not a mortgage or auto loan (see the section below on why). Loan Amount: defaults to the sum of your entered balances but is editable, since some lenders round up or you may want extra cash out. Interest Rate and Loan Term: use the actual offer from your lender if you have one — a pre-qualification estimate works too. Loan Fee / Points: enter it as a percentage of the loan or a flat dollar amount; this single field is what most competing calculators leave out, and it's often the difference between a loan that truly saves money and one that only looks like it does on the surface.
Consolidation Loan vs. Balance Transfer vs. Home Equity
A balance transfer card often advertises 0% for 12–21 months, which can beat any consolidation loan — but only if you can clear the balance before the promotional rate expires, since it typically jumps to a high standard rate afterward and usually charges a 3–5% transfer fee upfront. A personal consolidation loan gives you a fixed rate and a fixed end date from day one, with no cliff to fall off. A home equity loan, HELOC, or cash-out refinance is secured by your house, which usually means a meaningfully lower rate — but it also means your home is collateral, and stretching short-term credit card debt across a 15–30 year mortgage term can rack up far more total interest despite the lower rate, unless you're disciplined about paying it down faster than the minimum.
How a Loan Fee Can Quietly Erase Your Savings
Origination fees typically run 1% to 8% of the loan amount and are usually subtracted straight from your proceeds — a $20,000 loan with a 5% fee actually deposits $19,000 into your account, while you keep owing and paying interest on the full $20,000. On a loan that only modestly beats your current blended rate, a fee in the higher end of that range can wipe out most or all of the projected interest savings, sometimes flipping the whole decision from "worth it" to "not worth it." Try raising the Loan Fee field in the calculator above while watching the "Interest & Fees Saved" number at the top of the results — it's a fast way to see your own break-even point rather than a generic rule of thumb.
How Consolidation Affects Your Credit Score
Applying for a new loan triggers a hard inquiry, which can ding your score a few points for a few months. Beyond that, paying off revolving credit card balances with a fixed installment loan usually lowers your credit utilization ratio — how much of your available revolving credit you're using — which tends to help your score over time. The risk is behavioral, not mathematical: if you pay off the cards and then run the balances back up again, you've added a new loan payment on top of new card debt, which is strictly worse than where you started.
What Debt Consolidation Won't Fix
A lower rate or a single payment doesn't address why the debt built up in the first place. If the underlying cause is spending more than you earn, consolidation buys time and can lower the cost of that time — but the balance comes back if the habits don't change. It's also not a quick process: a responsible lender will look at your full financial picture, and if the math in this calculator shows little or no savings, it may be worth exploring a debt payoff strategy on your current debts instead (see our Debt Payoff Calculator) before taking on a new loan altogether.
A Worked Example
Three debts totaling $16,000 — two credit cards and a personal loan — currently cost $370 a month combined, at a blended rate near 16.6%, and would run up roughly $10,059 in interest before they're paid off at their current payments. Rolling them into a single 9%, 5-year loan with a 3% origination fee ($480) brings the new payment to roughly $332 a month — about $38 lower — while the real, fee-adjusted APR comes out closer to 10.3% rather than the advertised 9%. Even after the fee, the new loan's total interest plus fee comes to about $4,408 — a savings of roughly $5,650 over keeping the three original debts. Enter your own numbers in the calculator above to see your break-even month and total savings.
Frequently asked questions
Does debt consolidation actually save money?
Only if the new loan's interest rate — after accounting for any origination fee — is meaningfully lower than the blended rate across your current debts. A lower monthly payment alone doesn't guarantee savings, since stretching the term can lower the payment while raising total interest. Always compare total cost, not just the payment.
What is a good interest rate for a debt consolidation loan?
It depends on your credit score, but generally anything noticeably below your current cards' average APR is worth considering. Borrowers with good to excellent credit often qualify for personal loan rates well under typical credit card APRs, while fair-credit borrowers may see rates closer to what they're already paying — which is why running the actual numbers matters more than a rule of thumb.
Will debt consolidation hurt my credit score?
Applying triggers a hard inquiry, which can cause a small, short-term dip. Beyond that, paying off revolving credit card balances with an installment loan typically lowers your credit utilization ratio — a factor that helps your score — as long as you keep making every payment on time and don't run the paid-off cards back up.
What's the difference between a debt consolidation loan and a balance transfer card?
A balance transfer card moves your balance to a new card, often with a 0% introductory rate for a limited time, but the rate usually jumps sharply once that period ends. A debt consolidation loan gives you a fixed rate and a fixed payoff date from day one. The card can win if you're confident you'll clear the balance before the promo ends; the loan is more predictable over a longer payoff.
What is an origination fee and how does it affect my savings?
An origination fee is a one-time upfront charge — commonly 1% to 8% of the loan amount — that most lenders deduct directly from your loan proceeds before you receive the money. You still owe and pay interest on the full loan amount, so this fee quietly raises your real cost of borrowing above the advertised interest rate, which is exactly what the “Real APR” figure in this calculator accounts for.
How long does it take to pay off a debt consolidation loan?
That's whatever term you choose for the new loan — commonly two to seven years for a personal loan. The useful comparison isn't the term by itself, it's the term against how long your current debts would otherwise take to clear at their existing payments, which this calculator shows side by side.
Should I include my mortgage or auto loan in a debt consolidation loan?
Usually not. Debt consolidation loans are meant for unsecured, typically higher-rate debt like credit cards, medical bills, and other personal loans. Mortgages and auto loans are already secured, generally carry lower rates, and have their own refinancing options that are usually a better fit than folding them into a personal consolidation loan.
Is debt consolidation the same as debt settlement?
No, and the difference matters. Consolidation pays your existing balances off in full using a new loan — your obligation doesn't shrink, it just moves. Debt settlement negotiates with creditors to accept less than the full balance, which can severely damage your credit and carries tax implications on the forgiven amount. This calculator models consolidation, not settlement.
This calculator provides estimates for general informational purposes only and is not financial advice. Actual loan offers, fees, and approval depend on your lender and credit profile — confirm final numbers with your official loan agreement before making a decision.