Debt Consolidation Calculator

What Is Debt Consolidation?

Debt consolidation combines multiple high-interest debts — credit cards, medical bills, personal loans — into a single loan with one monthly payment. The goal is a lower interest rate and simplified payments. According to the Consumer Financial Protection Bureau (CFPB), the average credit card APR hit 21.5% in 2026, making consolidation into a personal loan at 9–15% APR a significant interest saver for most borrowers.

This calculator lets you enter up to 10 debts, specify a consolidation loan rate and term, and instantly compare total interest paid, monthly payments, and payoff date. All calculations run locally — your data never leaves your browser.

When Debt Consolidation Makes Sense

Consolidation works best when your new loan rate is lower than the weighted average rate on your existing debts. Common situations include high-interest credit card debt (18–29% APR) consolidated into a personal loan at 8–15%, or multiple student loans merged through a private refinance. The break-even analysis depends on three factors: rate differential, origination fee, and loan term. This tool calculates all three simultaneously so you can make a data-backed decision.

Debt consolidation is not a fit if your new rate is higher than your current weighted average, if you're facing a secured-debt situation requiring different handling (mortgage, auto), or if behavioral spending patterns created the debt (consolidation without behavioral change often leads to re-accumulation). The FTC (ftc.gov) recommends comparing at least three lender quotes before applying.

How the Calculation Works

The calculator uses the standard amortization formula: PMT = P × [r(1+r)ⁿ] / [(1+r)ⁿ−1] where P = principal, r = monthly rate, n = term in months. For your current debts, it estimates total interest remaining based on the balance, current APR, and remaining term you enter. For the consolidation loan, it adds any origination fee to the principal before calculating. The "interest saved" figure is the difference between the two total interest amounts — a negative number means consolidation costs more, so you should decline.

2026 Personal Loan Rate Benchmarks

As of 2026, average personal loan APRs range from 8.5% (excellent credit, 750+) to 20% (fair credit, 600–650). Key lenders: LightStream 7.49–25.49%, SoFi 8.99–29.99%, Marcus 6.99–24.99%, Discover 7.99–24.99%. Always check your pre-qualified rate, which uses a soft credit pull and won't affect your score. Source: Federal Reserve H.15 statistical release.

Balance Transfer Card vs Personal Loan: When to Pick Which

A debt consolidation calculator works for either path, but the inputs differ. Balance transfer cards (0% intro APR for 12–21 months, 3–5% transfer fee) win when your total debt fits inside the intro window — if you can pay $8,000 off in 18 months at 0%, a card beats a 12% personal loan even after the $240 transfer fee. Personal loans win when your debt won't fit the intro window: a $25,000 balance you'll pay over 5 years should NOT sit on a card that resets to 22% APR after month 18. The CFPB balance transfer guidance warns that consumers routinely underestimate how much of a balance transfer they can actually retire inside the intro window — model both options in this calculator using the consolidation APR (loan) vs. the post-intro APR (card) and pick the one with lower total interest. Updated 2026-06-19.

Debt Consolidation Calculator: How to Get the Right Inputs

For a debt consolidation calculator to return a number you can act on, three inputs must be accurate: weighted-average APR across your current unsecured debts, the consolidation APR you've actually been pre-qualified for (not the lowest advertised rate), and the loan term that matches your monthly cash flow. Pre-qualify with two or three lenders first — soft-pull APR offers reflect your real credit profile far better than published ranges. See CFPB's debt-consolidation loan guidance for the consumer-protection rules lenders must follow.

How Debt Consolidation Affects Your Credit Score

Debt consolidation moves your FICO score in two opposite directions at once. Short-term hit: a hard credit pull from the new loan application drops your score 5-10 points, and the new account lowers your average account age. Long-term lift: paying down revolving credit-card balances drops your credit-utilization ratio — the second-largest FICO factor (30% of the score) — and a 12-month on-time payment history on the consolidation loan rebuilds payment history. Per the CFPB credit-score guidance, most borrowers see net score gains of 20-40 points within 6-12 months IF they don't run the paid-off cards back up. Close zero balance cards only after the score recovers — keeping them open preserves the lower utilization ratio. Updated 2026-06-29.

How Long Does Debt Consolidation Take: Realistic 2026 Timeline

From application to funded payoff, debt consolidation typically takes 7–21 days. Online lenders (SoFi, LightStream, Marcus) approve and fund in 1–7 business days. Credit unions run slower: 5–14 business days for underwriting plus 2–3 days for the ACH deposit. Once funded, you use the loan proceeds to pay each old creditor directly — allow another 2–7 business days for those payments to post and card balances to hit zero. Actual payoff of the consolidation loan itself takes as long as the term you enter above (typically 24–72 months). Per Federal Reserve household finance data, 37% of US adults couldn't cover a $400 emergency in cash — meaning a 60-month consolidation term is often more realistic than a 36-month term for the same monthly cash flow. Run the calculator with both terms to see the interest trade-off. Updated 2026-07-06.

2026 Debt Consolidation Lender Rates: Quick Reference

Use these current 2026 APR ranges as the anchor rate before you plug numbers into the debt consolidation calculator above. Actual offered rates depend on your FICO, income, and debt-to-income ratio — always run a pre-qualification (soft pull, no score impact) with at least three lenders before applying. Rates below are pulled from lender rate cards as of 2026-07-15.

Plug the low end of your qualified range into the calculator above to see best-case savings, then plug the high end to see worst-case. If the high end still saves interest vs your current weighted APR, consolidation is a safe bet. Cross-reference with the Federal Reserve G.19 consumer credit release to see how your quoted rate compares to national averages. Updated 2026-07-15.