Key Takeaways
Two numbers that tell you different things about your loan cost. Last updated October 18, 2026.
The interest rate and the APR (Annual Percentage Rate) are two different numbers — and understanding both helps you compare loans honestly. Let me explain the difference.
The Interest Rate
The interest rate is the cost of borrowing the principal, expressed as a percentage. It's the number that drives your monthly principal-and-interest payment — and the one most people quote when talking about their mortgage.
The APR
The APR is broader. It includes the interest rate plus certain other costs of the loan — things like some fees and charges — expressed as an annualized rate. Because it folds in more costs, the APR is typically higher than the interest rate, and it gives you a more complete picture of the loan's cost over time.
Did You Know?
How to Use Both Numbers
When comparing loans, look at both. The interest rate tells you about your monthly payment. The APR tells you about the loan's total cost. A loan with a lower rate but higher fees can sometimes cost more overall than a loan with a slightly higher rate and lower fees.
Let Me Help You Compare
Don't compare loans alone. I'll walk you through the rate and APR side by side, explain what each fee is, and help you see which option truly fits your goals.
