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Debt Payoff Calculator

Finance
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This calculator helps you determine the payoff time and interest paid for different debt repayment strategies.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Total Debt Amount ($), Annual Interest Rate (%), and Monthly Payment ($) in the units shown.

Step 2

Read Monthly Interest Rate, Payoff Time (Months), Total Paid ($), and Total Interest Paid ($) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Scenario 1: Moderate Debt

Total Debt Amount ($): 10,000; Annual Interest Rate (%): 5; Monthly Payment ($): 300

Monthly Interest Rate: 0.004166666667; Payoff Time (Months): 36 months; Total Paid ($): 10,800 $; Total Interest Paid ($): 800 $

Scenario 2: Higher Interest

Total Debt Amount ($): 10,000; Annual Interest Rate (%): 10; Monthly Payment ($): 300

Monthly Interest Rate: 0.008333333333; Payoff Time (Months): 40 months; Total Paid ($): 12,000 $; Total Interest Paid ($): 2,000 $

Scenario 3: Aggressive Payments

Total Debt Amount ($): 10,000; Annual Interest Rate (%): 5; Monthly Payment ($): 500

Monthly Interest Rate: 0.004166666667; Payoff Time (Months): 21 months; Total Paid ($): 10,500 $; Total Interest Paid ($): 500 $

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Important

Treat this output as a planning estimate and confirm rates, tax rules, and contract terms before making financial decisions.