Curious about how the interest on your loan works? Learn how interest rates are determined and how to calculate interest on a loan yourself.

To calculate interest, you need to know variables such as interest rate, principal loan amount and loan term. So if you had 4% interest on a $100,000 mortgage loan, and your loan term was 30 years ...

If a lender uses the simple interest method, it’s easy to calculate loan interest. You will need your principal loan amount, interest rate and loan term to calculate the overall interest costs.

Calculate your interest payments and determine how much interest you’ll pay overall.

There are three simple steps to determining the interest liability on a loan note, so you'll know the total amount you're paying.

Interest is the cost of borrowing money from a financial institution and increases the total amount you’ll pay back. It’s important to compare student loan rates to find one that ensures you ...

2. Calculate interest for one year Next, calculate the interest charge for one year by multiplying the principal by the interest rate. In our example that math would yield $5,000 X 0.07 = $350.

To decide which type of CD is best for you, consider its value. Here’s how to calculate CD interest, helping you better manage your hard-earned money.

Source: Flickr user Dafne Cholet. Simple interest refers to interest that's calculated solely based on the principal, and not any interest that has already accrued. The general formula for ...

Use this interest-only mortgage calculator to determine if this type of loan makes sense for your goals and financial situation.