Free CalculatorWiser tool

APR Calculator

Estimate annual percentage rate from interest, fees, principal and loan term.

How to use the APR Calculator

Estimate annual percentage rate from interest, fees, principal and loan term.

Step-by-step instructions

  1. Enter or select Principal.
  2. Enter or select Total interest.
  3. Enter or select Fees.
  4. Enter or select Loan term (years).
  5. Tap Calculate.
  6. Review the result shown directly below the calculator.

What the inputs mean

Principal
Enter the value requested by this field label.
Total interest
Enter the full amount, target, goal, or capacity used as the comparison value.
Fees
Enter the value requested by this field label.
Loan term (years)
Enter the value requested by this field label.

Formula or calculation method

The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.

Example

Try entering realistic values for Principal and Total interest, then tap Calculate to see how the result changes.

How to understand the result

Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.

Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.