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APR Calculator

Find a loan's real annual percentage rate (APR) once fees are counted, with the payment and total cost.

Change the values and press Calculate to work out your own figures.

Enter the loan, rate, term and fees.

About loan amountWhat you borrow.
About interest rate, % a yearNominal annual rate.
About apr methodHow the rate is annualized; the UK and EU quote the effective annual rate.
About currencyChanges how amounts are shown, not the math; your choice is remembered on this device.
About term, yearsYears of payments.
About and months (optional)Extra months.
About fees added to the loan (optional)Financed closing costs.
About fees paid up front (optional)Paid out of pocket at closing.
Result
APR
6.563%
Monthly payment
$1,110.21
Total of payments
$133,224.60 over 120 months
Total interest
$33,224.60
Total cost with fees
$135,724.60
UK/EU APRC (effective)
6.8%

The APR is 6.563% against a 6% rate.

Show the working
  1. payment = (amount + financed fees) × i ÷ (1 − (1 + i)^−n)
  2. APR = 12 × the monthly rate j at which the payments repay the amount less upfront fees

How to use it

Enter the loan, rate, term and fees.

Enter amounts without commas or with them; rates are percentages (5 for 5%). Negative amounts are allowed where a sign means money paid out.

Key facts

payment = (amount + financed fees) × i ÷ (1 − (1 + i)^−n)
APR = 12 × the monthly rate j where payment × (1 − (1 + j)^−n) ÷ j = amount − upfront fees

APR vs rate

The interest rate sets the payment; the APR adds the fees so loans with different fees can be compared. It isn't the APY, which counts compounding.

Questions

What is the APR of a $100,000 loan at 6% with $2,500 in fees?

6.563% over 10 years.

Formulas

payment = (amount + financed fees) × i ÷ (1 − (1 + i)^−n)
APR = 12 × the monthly rate j where payment × (1 − (1 + j)^−n) ÷ j = amount − upfront fees

Sources

Limitations

  • Results are estimates for planning, not offers or financial advice; lenders and banks may round, count days or time payments differently.
  • Rates are nominal annual rates compounded as you choose; payments at a different frequency use the equivalent periodic rate.

Formula version 0.1.0Reviewed