APR Calculator — Free Annual Percentage Rate Calculator | AllInOneTools
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APR Calculator

Calculate the true Annual Percentage Rate of any loan including fees. Compare offers, convert between APR and APY, and understand the real cost of borrowing.

Loan APR
APR ↔ APY
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💡 What This Means

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APR Explained: The Number That Reveals the True Cost of Borrowing

When comparing loan offers, the interest rate alone does not tell the full story. Two loans with identical interest rates can cost significantly different amounts due to fees, points, and other charges. The Annual Percentage Rate (APR) exists to solve this problem: it rolls all costs of borrowing into a single comparable number. Understanding APR is essential for making informed borrowing decisions, whether you are taking out a mortgage, car loan, personal loan, or evaluating credit card offers.

What Exactly Is APR?

APR represents the total annual cost of borrowing, expressed as a percentage. It includes not only the interest rate but also origination fees, closing costs, discount points, mortgage insurance, and other mandatory charges. By consolidating all costs into one number, APR allows you to compare loans on an apples-to-apples basis. In many countries, lenders are legally required to disclose the APR so consumers can make fair comparisons.

APR = Effective annual cost of borrowing including all fees

APR is always ≥ the stated interest rate
(They are equal only when there are zero fees)

APR vs Interest Rate

The stated interest rate (also called the nominal rate) is simply the annual cost of the principal borrowed, without any fees factored in. If you borrow 100,000 at 6% interest for 30 years, the interest rate determines your monthly payment based purely on the principal. However, if the lender charges 2,000 in origination fees plus 1,500 in other costs, you are effectively borrowing less (96,500 after fees) while still repaying the full 100,000. This makes the effective cost higher than 6% — the APR captures this difference.

APR vs APY (Annual Percentage Yield)

APR and APY are related but different. APR is a simple annual rate that does not account for the effect of compounding within the year. APY (also called EAR — Effective Annual Rate) includes the impact of compounding. If interest compounds monthly at a nominal rate of 12%, the APR is 12% but the APY is 12.68% because each month's interest earns interest in subsequent months. APY is typically used for savings accounts and investments; APR for loans and credit products.

APY = (1 + APR/n)^n − 1

Where n = number of compounding periods per year
Example — Why APR Matters When Comparing Loans
Loan A: 200,000 at 6.0% interest, 3,000 in fees → APR: 6.13%
Loan B: 200,000 at 6.25% interest, 0 fees → APR: 6.25%

Loan A has a lower interest rate but Loan B might still be cheaper depending on how long you keep the loan. For shorter hold periods, lower fees matter more. For longer terms, lower rates win. APR helps you compare, but consider your specific timeline.
Pro Tip — Always Compare APR, Not Just Interest Rate
When shopping for loans, request the APR from every lender — not just the interest rate. A loan with a lower interest rate but high fees can cost more than a loan with a slightly higher rate and minimal fees, especially for shorter loan terms. APR gives you the true cost comparison.
APR Has Limitations
APR assumes you keep the loan for its full term. If you refinance or sell early, a loan with higher fees and lower rate may cost more than a lower-fee option. APR also does not capture variable rate changes. For adjustable-rate products, the disclosed APR is based on the initial rate and may not reflect future costs.

Frequently Asked Questions

What is APR? ▾
APR (Annual Percentage Rate) is the total yearly cost of borrowing expressed as a percentage. Unlike the simple interest rate, it includes fees and charges, giving you the true cost of a loan for comparison purposes.
Why is APR higher than the interest rate? ▾
APR is higher because it includes fees (origination, closing costs, points) on top of the interest rate. The more fees a loan has, the larger the gap between the stated rate and the APR. When fees are zero, APR equals the interest rate.
What is the difference between APR and APY? ▾
APR is a simple annual rate without compounding. APY accounts for compounding within the year, making it higher for the same nominal rate. APY shows the true return on savings; APR shows the cost of borrowing. For monthly compounding at 12% APR, the APY is about 12.68%.
What is a good APR? ▾
It depends on the loan type and your credit. Typical ranges: mortgages 5-8%, auto loans 4-10%, personal loans 6-20%, credit cards 15-28%. Generally, the better your credit score, the lower your APR. Always shop multiple lenders to find the best rate.
Does this calculator work globally? ▾
Yes. APR calculations are mathematically universal. Select your currency from the dropdown for display purposes. The underlying math — amortization, compounding, and fee impact — works identically regardless of currency or country.