Total Cost of Debt Calculator

Enter all your debts and discover what they're really costing you. The total annual interest figure is often the wake-up number that motivates people to take action.

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Your Total Debt Picture

Total Annual Interest Cost
Total Debt Balance
Total Monthly Payments
Total Interest Over All Terms
Projected Debt-Free Date

Debt Breakdown

Type Balance Rate Monthly Pmt Total Interest
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How the total cost of debt is worked out

The total cost of a loan is the amount you borrowed plus every dollar of interest you pay across its full life. This calculator adds up all your payments so you can see the true cost — not just the headline loan amount.

The gap between what you borrow and what you repay is the interest, and it's driven by your rate and term. Seeing the full figure often reveals how much a long term or high rate really costs, and where overpaying could help.

Estimates only, and not financial advice. Figures assume a fixed interest rate — always check your loan or card agreement for the exact terms.

Common questions about the total cost of debt

What is the total cost of a loan?

It's the sum of everything you repay — your original balance plus all the interest over the loan's life. It shows the real price of borrowing, which can be far higher than the amount you actually received.

Why is the total cost higher than the amount I borrowed?

Because you pay interest on the balance for the whole term. The longer you take to repay and the higher the rate, the more interest accrues — so the total repaid exceeds the original loan, sometimes substantially.

How can I reduce the total cost of my debt?

Get the lowest rate you can, choose the shortest term you can comfortably afford, and make overpayments where allowed. Each of these cuts the interest portion of the total.

Does a longer term increase the total cost?

Yes. A longer term lowers your monthly payment but means you pay interest for more years, so the total cost rises — even though each individual payment feels more manageable.