# How To Calculate Loan Interest in Excel (With Tips)

Now you can calculate the total interest you will pay on the load easily as follows: Select the cell you will place the calculated result in, type the formula =CUMIPMT(B2/12,B3*12,B1,B4,B5,1), and press the Enter key.

When you take out a loan, you’re likely to pay interest in addition to the principal amount. Knowing exactly how much interest you’re paying can be a bit tricky, but fortunately, Excel makes it easy to calculate loan interest. In this blog post, we’ll explain how to calculate loan interest in Excel in a few simple steps. You’ll learn how to enter loan information into the spreadsheet, set up the formula to calculate interest, and customize your spreadsheet to make future loan calculations easier. We’ll also discuss some of the features of Excel that make calculating loan interest more efficient. After reading this post, you’ll be able to use Excel to calculate loan interest with ease.

## Loan interest formula

You can begin calculating your loan interest using the CUMIPMT function after creating your document and gathering the necessary loan data. The formula for this function is:

=CUMIPMT(rate,nper,pv,start_period,end_period,type)

Here are what each variable in the formula represents:

## Why learn how to calculate loan interest in Excel?

A good way to control your spending and keep track of the number of years you have left before making your last payment is to learn how to calculate your loan interest. Knowing how much money you need to set aside each month or year to stay on track to pay off the loan within the desired time frame can be done by keeping track of your loan interest. Excel is a good tool to use to perform this calculation because it allows you to track how your interest changes after each payment in addition to automating the mathematical process.

## How to calculate loan interest in Excel

You can use Excel’s CUMIPMT function to determine your loan interest once you understand what the function’s variables stand for. Here are the steps to calculating your interest:

### 1. Create your data table

Creating a data table with the necessary information is the first step in using Excel to calculate your loan interest. You may want to include cells for the loan’s principal amount, annual interest rate, the number of years you plan to repay the loan, your starting period, and your ending period in this step. Create labels for the data table after adding the pertinent numbers so that you can quickly recall what each cell represents.

The following step is to enter your function into the cell where you want to calculate the interest after creating your data table. Click on the cell and then select the formula bar above the column names to do this. In that bar, enter =CUMIPMT(rate,nper,pv,start_period,end_period,type). Additionally, you might want to give this cell a name so that you can remember where you put the formula.

The following step is to change the formula’s variables after entering the function. Simply enter the cells that refer to each of the values to accomplish this. For example, your finished function might look like this:

=CUMIPMT(B2,B3,B4,B5,B6,B7)

Make sure you are using the cells that you labeled for each variable when you make references to them. By doing so, you can easily alter the values in the cell, and your formula will update. Instead of referring to the cells, you can type the numbers directly if you prefer.

### 4. Ensure the function works correctly

You might want to test your function after writing it to make sure it functions as intended. You can calculate this by using the value provided by your function. You can use this spreadsheet to determine your loan interest if the equation is valid and your function is operating properly.

## Types of data to use when calculating loan interest

It can be useful to read about some different types of loans that you can calculate using this formula if you want to calculate the interest on your loan but are unsure that the CUMIPMT function will work for you. You might want to use CUMIPMT or another Excel function to determine your interest rate depending on the type of loan you have. Here are a few examples of various loan types with interest that you can figure out using the CUMIPMT function:

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