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APR Calculator
Estimate annual percentage rate, monthly payment, amount financed, total finance charge, and the spread between APR and the stated interest rate.
APR Calculator
Use this free APR calculator to estimate how origination fees, lender charges, and prepaid interest change the true cost of borrowing. Enter the loan amount, stated interest rate, repayment term, and upfront finance charges to compare the note rate with the effective annual rate. It works well with the Personal Loan Calculator, the Payment Calculator, and the broader Financial Calculators category.
Loan Terms
Prepaid Finance Charges
Results
apr viewFees materially increase the true borrowing cost
The note rate is 8.50% but the estimated APR rises to 10.64% once prepaid finance charges are included.
APR Summary
Stated Interest Rate8.50%
Estimated APR10.64%
APR Lift from Fees2.14%
Monthly Payment$410.33
Amount Financed$19,030.00
Total Finance Charge$5,589.80
Cost Breakdown
Total Prepaid Charges$970.00
Total Interest$4,619.80
Total of Payments$24,619.80
Average Monthly Finance Cost$93.16
Loan Term60 months
Net Cash Received$19,030.00
What is an APR calculator?
An APR calculator helps you compare the real annualized borrowing cost after fees are taken into account. A lender may advertise one interest rate, but if the loan includes origination fees or prepaid finance charges, the effective borrowing rate can be meaningfully higher.
That makes APR a stronger comparison tool than the note rate alone, especially when you are reviewing competing offers with different fee structures. To compare those offers from multiple angles, continue into the Loan Interest Calculator, the Payment Calculator, or browse the full Financial Calculators collection.
How this calculator works
The calculator first estimates the monthly payment from the loan amount, the stated annual interest rate, and the repayment term. It then subtracts prepaid finance charges from the loan proceeds to find the amount actually financed.
Next, it solves for the effective periodic rate that matches the payment stream against the smaller amount financed. That effective rate is annualized into APR, and the tool also reports the total finance charge, total interest, and the spread between APR and the nominal rate. If you want to work backward from payment instead, use the Interest Rate Calculator.
Worked example
The default example uses a $20,000.00 loan at 8.5% for 60 months, with a 3.0% origination fee plus additional lender charges. This shows how a modest fee package can push the effective APR above the headline rate.
Monthly payment
$410.33
Estimated APR
10.64%
Amount financed
$19,030.00
In this example, the borrower repays the full note balance with interest, but the actual cash received is reduced by upfront finance charges. That gap is exactly why APR is useful when comparing offers that seem similar on the surface.
Frequently asked questions
An APR calculator estimates the annual percentage rate after factoring in prepaid finance charges such as origination fees, lender fees, and prepaid interest. It shows how the true borrowing cost can end up higher than the headline interest rate.
Related tools
Use related borrowing and payment tools to compare monthly affordability, reverse-engineer rates, or review total loan cost from another angle.
Explore This Tool in Context
APR Calculator is part of the Financial Calculators collection. If you want a broader view of similar workflows, open the Financial Calculators category page or browse all QuickTools categories.
Common next steps after this tool include Estate Tax Calculator, Social Security Calculator and Annuity Payout Calculator.
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