APR vs Interest Rate: What's the Difference (and Why It Matters)
The interest rate is only part of the story, APR includes the fees. Here's how they differ and how to compare loans like a pro.
When you shop for a loan, two numbers get thrown around: the interest rate and the APR. They look similar, and lenders sometimes blur them in advertising, but they measure different things. Knowing the difference can save you from picking a loan that looks cheap and isn't.
Interest rate: the cost of the money
The interest rate is the percentage a lender charges to borrow the principal, nothing more. It determines the interest portion of your monthly payment, but it ignores any fees you pay to get the loan.
APR: the cost of the loan
The Annual Percentage Rate includes the interest rate plus most of the fees, origination charges, points, and certain closing costs, expressed as a single yearly percentage. That makes it a truer measure of what the loan actually costs you.
Interest rate = cost of borrowing the money. APR = cost of borrowing the money plus the fees. APR is the number to compare.
Why two identical rates can cost different amounts
Imagine two $200,000 mortgages, both advertised at a 6.5% interest rate:
| Loan A | Loan B | |
|---|---|---|
| Interest rate | 6.5% | 6.5% |
| Upfront fees | $2,000 | $7,000 |
| APR (approx.) | 6.58% | 6.80% |
| Verdict | Cheaper overall | More expensive |
Same headline rate, very different true cost. Loan B's heavier fees push its APR higher, which you'd miss if you compared only the interest rate.
A lender can advertise a low interest rate by charging points (upfront fees) to reduce it. The low rate looks great, but the APR reveals what those points really cost you.
How to use this when borrowing
- Compare APR to APR across lenders for the same loan type and term.
- Ask what's included in each APR, some fees (like third-party costs) may vary.
- Consider how long you'll keep the loan. If you'll repay or move quickly, upfront fees matter more; APR assumes you keep it the full term.
See what a rate really costs. Plug your loan amount, rate and term into the calculator to view the monthly payment and total interest.
Open the Loan Calculator →The bottom line
The interest rate tells you the cost of the money; the APR tells you the cost of the loan. Fees hide in the gap between them. Compare offers by APR, ask what's bundled in, and you'll see through a cheap-looking rate to the real price.
Frequently asked questions
What is the difference between APR and interest rate?
The interest rate is the yearly cost of borrowing the loan amount. The APR (Annual Percentage Rate) includes the interest rate plus most fees, so it reflects the true yearly cost of the loan and is better for comparing offers.
Why is APR higher than the interest rate?
Because APR rolls in fees like origination, points and certain closing costs on top of the interest. If a loan has no fees, the APR and interest rate are the same.
Should I compare loans by APR or interest rate?
By APR. Two loans can share an interest rate but differ in fees, and APR captures that difference, giving you an apples-to-apples comparison.