How to Use the PI Function in Excel

Today, we will explore the fundamental mathematical constant – π (pi). In both Excel and Google Sheets, pi is a built-in function that returns the value of pi, accurate to 15 digits. Here’s a guide on how to utilize the pi function effectively in these spreadsheet programs.

Excel:

In Excel, using the PI function is very straightforward as it requires no arguments. To calculate the value of pi, simply follow these steps:

1. Select the cell where you want pi to appear.
2. Type the formula =PI() into the formula bar.
3. Press Enter.

For example, if you type =PI() in cell A1, Excel will display 3.14159265358979 in that cell.

Google Sheets:

The process in Google Sheets is very similar. Like Excel, the PI function in Google Sheets requires no arguments. To use it:

1. Click on the cell where you want the pi value to appear.
2. Enter the formula =PI() into the formula bar.
3. Press Enter.

For instance, entering =PI() in cell A1 in Google Sheets will yield 3.14159265358979 in that cell.

Applications:

The pi function is extremely useful in a variety of mathematical and engineering applications. Below are a couple of scenarios where the pi function is essential:

1. Calculating Circumference:

To determine the circumference of a circle with a given radius r, use the formula: C = 2 * π * r. For example, with a radius of 5, the circumference is calculated by =2*PI()*5, which equals 31.4159265358979.

2. Calculating Area:

To calculate the area of a circle when the radius r is known, the formula is: Area = π * r^2. With a radius of 7, you can find the area by entering =PI()*7^2 in a cell, resulting in 153.938040025899.

By mastering the pi function in Excel or Google Sheets, you can streamline these calculations and many others. Familiarity with mathematical functions significantly enhances your spreadsheet skills.

More information: https://support.microsoft.com/en-us/office/pi-function-264199d0-a3ba-46b8-975a-c4a04608989b