How does student loan interest work?
When you apply for a student loan, you'll be offered an interest rate. This interest rate is an extra percentage of your loan amount that you'll have to pay each month.
With federal loans, this rate is the same for all borrowers and is determined by the federal government each year. With private loans, this rate is determined by your credit score, income and more. The most affordable private student loans go to students in good financial health with high credit scores.
Learn more: How Fed rate changes impact student loans
Prospective borrowers can usually choose between a fixed and a variable interest rate. Fixed interest rates remain the same over the life of the loan, while variable rates change based on market trends. Federal student loans are always fixed, while private student loans can be either fixed or variable.
Learn more: Fixed vs. variable student loan rates
How is student loan interest calculated?
While browsing interest rates, you can calculate your student loan interest to estimate how much you will pay each month. Here's how to do it:
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- Find your daily interest rate: Divide your annual interest rate by the number of days in a year (365).
- Determine your daily interest accrual charge: Multiply your daily interest rate by your principal balance.
- Calculate your monthly payment: Multiply your daily interest by the number of days in your billing cycle.
If you have $10,000 in student loans and a 6 percent interest rate, with a 30-day billing cycle, you would pay a little over $49 in interest monthly.
You can also calculate how much interest you'll pay over the life of your student loan by using a student loan calculator.
Learn more: How to calculate student loan interest