What debt consolidation really does
Consolidation means rolling several debts, often credit cards and small loans, into one new loan with a single monthly payment. The pitch is simple: one payment instead of five, usually at a lower rate than the cards you are carrying. This calculator puts that pitch to the test by comparing your current situation with the new loan side by side, so you can see whether it actually saves money or just reshuffles it.
It looks at two things that matter most. First, the monthly payment: does the new loan cost less each month than you pay now? Second, the total interest: over the full life of both paths, which one hands the lender less of your money? A deal can win on one and lose on the other, which is exactly the trap to watch for.
Two examples
Say you owe 15,000 across cards averaging 22% APR and you pay 450 a month. Left alone, that clears in about 52 months and costs you a painful amount in interest. Consolidate into a 48-month loan at 11% and the payment drops to roughly 388 a month, you finish a few months sooner, and you save several thousand in interest. That is consolidation working the way it should.
Now stretch that same 11% loan over 72 months instead of 48. The monthly payment falls further, which feels great, but you are paying interest for two extra years. Drag the term out far enough and a lower rate can still cost you more overall than the high-rate cards would have. Lower monthly, higher total: the classic long-term trap.
When consolidation is worth it
- The new rate is genuinely lower than the blended rate on what you owe now.
- You keep the term as short as you can afford, so a lower rate is not cancelled out by more months of interest.
- You stop adding new debt to the cards you just cleared. Consolidation fixes the maths, not the habit.
The mistakes that undo the savings
The biggest one is chasing the lowest monthly payment by stretching the term, which quietly raises the total cost. The second is ignoring fees: some consolidation loans charge an origination fee, and some balance transfers charge a percentage upfront, both of which eat into the saving. And a consolidation loan only helps if the old accounts stay paid off. Run those cards back up and you now owe the loan plus fresh card debt.
How debt consolidation actually saves money
Consolidation only helps when the new loan's rate (plus any fees) is lower than the blended rate you pay now, and you don't stretch the term so far that cheaper monthly payments cost more in total interest. The math is a simple comparison:
- Work out the weighted average APR of what you owe today.
- Compare it to the consolidation loan's APR over the same payoff period.
- If the new rate is lower and the term is similar, you save.
Worked example
Say you owe $15,000 across cards at about 22% APR. A 3-year consolidation loan at 12% is roughly $498 a month and clears the balance in 36 months, while you stop paying the 22% card rate. Dragging the same balance out to 6 years lowers the payment but can raise total interest, so keep the term tight.
Frequently asked questions
Does consolidation lower what I owe?
No. It does not erase debt, it repackages it. The gain comes from a lower interest rate and one simpler payment, not a smaller balance.
What rate should I put in for my current debts?
Use a rough blended average of the cards and loans you want to combine. If most of it sits on a high-rate card, lean toward that card's APR.
Why can a lower rate still cost more?
Because a longer term means more months of interest. If the new loan runs much longer than your current payoff, the total can rise even though the rate fell. Keep the term tight.
Are fees included?
No. Add any origination fee or balance-transfer fee on top. A 3 to 5% upfront fee can wipe out a small interest saving, so factor it in.
Will it hurt my credit score?
Applying adds a hard check and a new account, which can dip your score briefly. Paying the loan reliably and keeping the old cards at zero usually helps over time. This tool does the maths only, not credit advice.
Does debt consolidation actually save money?
Only if the new loan's APR (including fees) is below the blended rate on your current debts and you keep the term similar. A lower rate over a much longer term can cost more overall even though the monthly payment drops.
How is a debt consolidation loan payment calculated?
It is a standard amortized loan payment: the balance, the APR and the number of months set a fixed monthly figure. For example, $15,000 at 12% over 36 months is about $498 a month.