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Debt Consolidation Calculator

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Finance

Debt consolidation replaces multiple high-interest debts (like credit cards) with a single lower-interest personal loan, streamlining payments into one predictable monthly bill.

Reviewed by Noman Khan · MBA
Last updated:
Editorial Guidelines

⚙ Input Values

$
%
$
%

📊 Results

New Monthly Consolidated Payment
640.08
$/month
Monthly Payment Reduction
109.92
$/month
Total Interest (Current Path)
12849.06
$
Total Interest (Consolidated Loan)
5724.06
$
Total Net Interest Saved
7125.00
$
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📐 Formula

New Consolidated Monthly Payment = Principal × [r_new(1+r_new)^N] / [(1+r_new)^N - 1]
Monthly Savings = Current Total Monthly Payments - New Consolidated Monthly Payment
Total Interest Saved = Total Current Path Interest - Total Consolidated Loan Interest

💡 Practical Example

✅

Consolidating $25,000 in credit card debt at 21.0% APR into a 4-year consolidation loan at 10.5% APR. - New Monthly Payment: $639.92/month. - Total Interest Paid on Consolidation Loan: $5,716.16. - Total Net Interest Saved: $6,450.00.

📖 About Debt Consolidation Calculator

Debt consolidation replaces multiple high-interest debts (like credit cards) with a single lower-interest personal loan, streamlining payments into one predictable monthly bill.

To use the Debt Consolidation Calculator, enter your Total Current Debt to Consolidate, Current Weighted Average APR, Current Total Monthly Payments and other values. The calculator instantly computes New Monthly Consolidated Payment, Monthly Payment Reduction and more. Results update in real time as you change any input — no submit button needed.

How to Use This Calculator

Enter your Total Current Debt to Consolidate (e.g. 25000 in ), Current Weighted Average APR (e.g. 21.0 in %), Current Total Monthly Payments (e.g. 750 in ), New Consolidation Loan APR (e.g. 10.5 in %), and New Loan Term — choose from options such as 3 Years (36 Months), 4 Years (48 Months), 5 Years (60 Months). Results update instantly as you type — no submit button or page reload required. Adjust any value to compare scenarios side by side.

The Formula

New Consolidated Monthly Payment = Principal × [r_new(1+r_new)^N] / [(1+r_new)^N - 1]

Monthly Savings = Current Total Monthly Payments - New Consolidated Monthly Payment

Total Interest Saved = Total Current Path Interest - Total Consolidated Loan Interest

Worked Example

Consolidating 25,000 in credit card debt at 21.0% APR into a 4-year consolidation loan at 10.5% APR.

  • New Monthly Payment: 639.92/month.
  • Total Interest Paid on Consolidation Loan: 5,716.

16.

  • Total Net Interest Saved: 6,450.

00.

Understanding Your Result

Credit card interest compounds daily on the average daily balance — even a 3-day delay in paying can add measurable interest. The avalanche method (highest rate first) minimizes total interest paid. The snowball method (lowest balance first) maximizes behavioral motivation. For most people carrying multiple balances, avalanche saves 15–30% more in interest over the payoff period. Any extra payment above the minimum directly reduces principal and eliminates all future interest on that portion.

💡 Financial Planning: Expert Principles & Risk Awareness

  • All calculations assume fixed rates and idealized conditions. Real-world results vary due to market volatility, inflation, fees, and taxes.
  • The Consumer Financial Protection Bureau (CFPB) recommends consulting a certified financial planner (CFP) for decisions involving significant sums.
  • Run at least three scenarios: optimistic, pessimistic, and most-likely — to understand the full range of potential outcomes before committing.
  • Inflation averages 2–3% annually in the US (Federal Reserve target). Long-term projections that ignore inflation significantly overstate future purchasing power.
  • Tax treatment varies widely by account type (IRA, 401k, brokerage), jurisdiction, and income level. Verify tax implications with a CPA before acting.
  • Compound interest works for you in savings/investments and against you in debt. The difference of even 1% in rate, sustained over decades, is enormous.
  • Emergency funds (3–6 months of expenses) should be established before optimizing for returns — financial security precedes financial growth.
  • Financial projections older than 12 months should be recalculated. Interest rates, tax brackets, and market conditions shift materially year to year.

Results are for informational and educational purposes only. Always verify critical decisions with a qualified professional.

❓ Frequently Asked Questions

Will debt consolidation ruin my credit score?

Initially, applying for a consolidation loan causes a minor hard credit inquiry drop (3-5 points). Over time, consolidating improves your credit score by lowering your credit utilization ratio.

What is the main risk of debt consolidation?

The main risk is running up new credit card balances after paying off the old ones with the loan.

Can I save or export my results?

Yes. Use the Save CSV button in the results panel to download your inputs and outputs as a spreadsheet. You can also copy the shareable link to save your exact inputs.

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