Formula guide

APR Calculator formula

APR reflects the annual cost of a loan after combining interest and certain fees. It gives borrowers a more complete comparison than rate alone, although exact lender disclosures can use more detailed methods.

How the input values are used

Loan fees (USD)

The numeric value in USD is used in the calculation; keep units consistent.

Interest over 1 year (USD)

The numeric value in USD is used in the calculation; keep units consistent.

Loan amount (USD)

The numeric value in USD is used in the calculation; keep units consistent.

How to interpret the result

  • The result uses Loan fees (USD) and Interest over 1 year (USD). Change one variable at a time to compare its effect on the outcome.
  • Check whether relevant fees, taxes, and timing assumptions are included before using the estimate.
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