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PAYMENTS & COMPARISON

Simple interest loan calculator

Estimate interest for a single principal repayment using actual/365.

Example values are editable scenarios, not current offers. Enter your actual quoted terms.

Enter your scenario and select Calculate.

How this estimate works

Simple interest = principal × annual rate × days / 365. Interest and principal are due at maturity. No compounding, interim payments or day-count changes.

Results use unrounded intermediate amounts; display and CSV round to cents. Actual lender rounding and day counts can differ. Inputs are calculated locally and are not submitted to our server.

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Scenario schedule

Periods are monthly unless this calculator specifies a different payment frequency. A final balloon is included in the final payment. See the model assumptions above.