Debt consolidation calculator

Compare the remaining payments on each fixed-rate loan with a new loan for the combined balances and financed fees.

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Debt consolidation calculator processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Existing loans: balance, annual rate %, payments left (one per line)

New annual interest rate (%)

More inputs and assumptions

New monthly payments

Fees financed into the new loan

Answer

…

Compare the remaining payments on each fixed-rate loan with a new loan for the combined balances and financed fees.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

Each row assumes a fully amortizing loan with equal monthly payments. The comparison excludes future borrowing, variable rates, prepayment penalties, late fees and debt forgiveness. A lower monthly payment can still mean a higher total cost. Amounts use one currency chosen by you.

Automatic precision shows money to two decimal places and other numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-29

Using Debt consolidation calculator

Compare the remaining payments on each fixed-rate loan with a new loan for the combined balances and financed fees.

Next: Loan comparison calculator

Next: Amortization calculator

A worked example

For existing loans: balance, annual rate %, payments left (one per line) = 1000, 0, 10 2000, 0, 20, new annual interest rate (%) = 0, new monthly payments = 20, fees financed into the new loan = 0, new monthly payment = 150.00.

Before you use the result

Example results for new monthly payments

These examples use Existing loans: balance, annual rate %, payments left (one per line): 1000, 0, 10 2000, 0, 20; New annual interest rate (%): 0; Fees financed into the new loan: 0. They are reference calculations, not recommended settings.

New monthly payments	New monthly payment
10	300
20	150
40	75

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ToolOctopus. “Debt consolidation calculator.” Updated 2026-09-29. https://tooloctopus.com/debt-consolidation-calculator.

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