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Payday Loan APR Calculator

Effective annual rate on a payday-style fee loan.

Compute the effective annual percentage rate (APR) of a payday loan from the principal, the fee charged, and the term in days, using APR = (fee / principal) · (365 / days) · 100.

Published Last reviewed 1 min read

Inputs

$
$
day

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

APR % = (fee / principal) · (365 / days) · 100

In depth

Compute the effective annual percentage rate (APR) of a payday loan from the principal, the fee charged, and the term in days, using APR = (fee / principal) · (365 / days) · 100.