# Excel PI function

## What is PI function in Excel?

The PI function is one of the math functions of Excel.

It Returns the value of pi =3.14159265358979 accurate to 15 digits.

We can find this function in the Math&trig category of the insert function Tab.

## How to use PI function in excel

1. Click on an empty cell (like F5 )

2. Click on the fx icon (or press shift+F3)

3. In the insert function tab you will see all functions

4. Select math and trig category

5. Select PI function

6. Then select ok

7. You will see PI Value in the formula result at the end of function arguments Tab

8. You will see results in the formula result section

## Things to Remember

• This function is available for all of excel types (2007-2019)

## Examples of PI function in excel

1. To calculate the circumference of a circle with radius 5, use the formula: =2*PI()*5
2. To calculate the area of a circle with radius 3, use the formula: =PI()*3^2
3. To convert an angle from degrees to radians, use the formula: =PI()/180*degrees
4. To calculate the volume of a sphere with radius 4, use the formula: =4/3*PI()*4^3
5. To calculate the surface area of a sphere with radius 6, use the formula: =4*PI()*6^2
6. To calculate the length of an arc of a circle with radius 7 and central angle 60 degrees, use the formula: =PI()760/180
7. To create a chart of the sine function, create a column of x-values from -2PI() to 2PI(), and use the formula: =SIN(x)
8. To create a chart of the cosine function, create a column of x-values from -PI() to PI(), and use the formula: =COS(x)
9. To create a chart of the tangent function, create a column of x-values from -PI()/2 to PI()/2, and use the formula: =TAN(x)
10. To calculate the distance between two points with coordinates (1,1) and (4,5), use the formula: =SQRT((4-1)^2+(5-1)^2)*PI()/180

Example 1:

### How to use PI function in excel

You can see examples of PI function below:

## Excel’s PI Function: The Key to Accurate Circle Calculations

The PI function in Excel is a built-in mathematical constant that returns the value of pi (π) to a specified number of decimal places. It is often used to perform calculations involving circles, such as finding the circumference or area.

For example, to calculate the circumference of a circle with a radius of 5 units, you could use the formula:

``````=2*PI()*5
``````

which would return the result 31.41592654.

## Mastering the Syntax and Functionality of Excel’s PI Function

The syntax of the PI function in Excel is very simple – it requires no arguments or parameters. Simply enter the following formula into a cell and Excel will return the value of pi to the default number of decimal places:

``````=PI()
``````

To adjust the number of decimal places returned by the PI function, you can use the ROUND function. For example, to get pi to two decimal places, you could use the formula:

``````=ROUND(PI(),2)
``````

## Breaking Down the Differences Between PI and PHI Functions in Excel

Excel also has a function called PHI, which returns the value of the golden ratio, approximately equal to 1.61803398875. While the PI function is used primarily for calculations involving circles, the PHI function is used more often in geometry and art.

For example, to create a golden rectangle with a width of 10 units, you could use the formula:

``````=10/PHI()
``````

which would give you a height of approximately 15.56066017 units.

## How to Use Excel’s PI Function in Formulas for Precise Results

The PI function in Excel can be used in a wide variety of formulas to perform calculations involving circles and spheres. Here are a few examples:

• To calculate the volume of a sphere with a radius of 4 units, you could use the formula:

``````=4/3*PI()*4^3
``````

which would give you a result of approximately 268.0825731 cubic units.

• To calculate the area of a circle with a radius of 7 units, you could use the formula:

``````=PI()*7^2
``````

which would give you a result of approximately 153.9380401 square units.

• To calculate the length of an arc of a circle with a radius of 3 units and a central angle of 45 degrees, you could use the formula:

``````=PI()*3*45/180
``````

which would give you a result of approximately 4.71238898 units.

## Excel’s PI Function: The Accuracy You Need for Your Math Calculations

Excel’s PI function provides the accurate value of pi (π) to perform calculations involving circles and spheres. This function is very helpful for mathematicians, scientists, and engineers to compute precise results.

For example, to calculate the surface area of a sphere with radius 8 units, we can use the formula:

``````=4*PI()*8^2
``````

This will return the result as 804.2477193 square units.

## How Many Decimal Places Can You Expect from Excel’s PI Function?

Excel’s PI function returns the value of pi (π) to 15 decimal places as default. However, Excel stores the value internally to greater precision and can display it up to 17 decimal places.

To adjust the number of decimal places returned by the PI function, we can use the ROUND function in Excel. For instance, the following formula will return the value of pi (π) to five decimal places:

``````=ROUND(PI(),5)
``````

## Excel’s PI Function: The Perfect Tool for Calculating Circumference

Excel’s PI function is an excellent tool to calculate the circumference of a circle. We can use this function along with the radius of a circle to calculate its circumference accurately.

For example, if we have a circle with radius 10 units, we can use the formula:

``````=2*PI()*10
``````

This will give us the result of 62.83185307 units.

## Using Excel’s PI Function to Convert Radians to Degrees Made Easy

We can use Excel’s PI function to convert radians to degrees by multiplying the radians by 180/π. This formula applies to any angle measurement that we need to convert from radians to degrees.

For example, if we have an angle of 1.2 radians, we can use the formula:

``````=1.2*180/PI()
``````

This will return the result of 68.75493541 degrees.

## Excel’s PI Function: Not Just for Circles – Compute Areas Too!

Excel’s PI function is not just limited to calculating the circumference and diameter of circles. We can also use this function to calculate the area of a circle.

For example, if we have a circle with radius 6 units, we can use the following formula:

``````=PI()*6^2
``````

This will return the result of approximately 113.0973355 square units.

## Excel’s PI Function: The Key to Finding the Volume of a Sphere

Excel’s PI function is an essential tool in finding the volume of a sphere. By multiplying the cube of the radius by 4/3 and π, we can find the precise volume of a sphere.

For example, if we have a sphere with radius 9 units, we can use the following formula:

``````=4/3*PI()*9^3
``````

This will give us the result of approximately 3053.628059 cubic units.

## Automate Tasks with Excel’s PI Function in VBA Code

Excel’s PI function can be used in VBA code to automate tasks that involve calculations with pi (π). For instance, you can define a variable that holds the value of π and use it in your calculations.

`vb`
``````Sub PiFunctionInVBA()
Dim myPi As Double
myPi = Application.WorksheetFunction.Pi
MsgBox "The value of pi is " & myPi
End Sub
``````

This VBA code defines a variable called `myPi` and assigns it the value returned by the `PI()` function. We can then use this variable in our calculations.

## How Experts Use Excel’s PI Function to Simplify Complex Equations

Experts use Excel’s PI function to perform calculations involving complex equations with ease. They leverage the power of this function to simplify their calculations and get accurate results.

For instance, the following formula calculates the area of an ellipse:

``````=PI()*a*b
``````

Here, `a` and `b` are the semi-major and semi-minor axes of the ellipse, respectively. By using Excel’s PI function, we can simplify this calculation and get the precise area of the ellipse.

## Transform Your Data with Conditional Formatting using Excel’s PI Function

Excel’s PI function can be used to apply conditional formatting to a range of cells. For instance, we can highlight cells that contain values greater than pi (π) or less than pi (π).

To do this, we can use the following steps:

1. Select the range of cells you want to apply conditional formatting to.
2. Click on “Conditional Formatting” in the “Home” tab.
3. Select “New Rule”.
4. In the “New Formatting Rule” dialog box, select “Use a formula to determine which cells to format”.
5. Enter the formula “=A1>PI()” or “=A1<PI()” depending on your requirement.
6. Choose the formatting style you want to apply to the cells and click OK.

This will highlight the cells that meet your criteria for formatting based on the value of pi (π).

## Adjusting the Decimal Places Returned by Excel’s PI Function

Excel’s PI function returns the value of pi (π) to 15 decimal places as default. However, we can adjust the number of decimal places displayed by using the ROUND function.

For example, to display the value of pi (π) to two decimal places, we can use the following formula:

``````=ROUND(PI(),2)
``````

This will return the value of pi (π) rounded to two decimal places.

## Excel’s PI Function: The Quick Formula to Find Sphere Volumes

Excel’s PI function is an essential tool to find the volume of a sphere. By multiplying the cube of the radius by 4/3 and π, we can calculate the precise volume of a sphere.

For example, if we have a sphere with a radius of 7 units, we can use the following formula:

``````=4/3*PI()*7^3
``````

This will give us the result of approximately 1436.75504 cubic units.

## Understanding The Constant Value of Excel’s PI Function

The value of pi (π) is a mathematical constant that represents the ratio of a circle’s circumference to its diameter. Excel’s PI function returns the value of pi (π) to 15 decimal places as default, with an approximate value of 3.14159265358979.

This value of pi (π) is used in many calculations involving circles, spheres, and other circular shapes. By using Excel’s PI function, we can perform these calculations accurately and with ease.