Before starting the tutorial, it’s important to understand degrees and radians. In Excel, they are used in trigonometric functions such as SIN, COS, and TAN, which need the angle to be in radians for accurate calculations. degrees radians trigonometric functions SIN COS TAN radians What is Meant by Degrees? A degree is a unit for measuring angles, where a full circle is divided into 360 equal parts. For example, A right angle is 90 degrees, which is one-quarter of a full circle (360 degrees). 90 degrees What is Meant by Radians? A radian is the angle formed when the arc length equals the radius of a circle, with a full circle being 2π radians. If a circle has a radius of 5 cm and the arc length is also 5 cm, then the angle formed at the center is 1 radian. This is because an angle of 1 radian is defined when the arc length equals the radius. radius of 5 cm arc length is also 5 cm 1 radian 1 radian arc length equals the radius Primary Differences Between Degrees & Radians: Formula To Convert Degrees to Radians: In Excel, the RADIANS function directly converts a given degree value into its equivalent radian value. RADIANS degree value radian value =RADIANS(B4) //outputs radian values. =RADIANS(B4) //outputs radian values. By default, the RADIANS function in Excel returns the result with more than 10 decimal places. You can format the cell to limit the result to 2 decimal places, as shown in the example below. RADIANS more than 10 decimal places format the cell 2 decimal places To do this, you need to select the cells that contain the output Radian values. Right-click on the cells and choose Format Cells. Now, under the Category section, select Custom, and then choose the format “0.00” to display decimal values up to 2 decimal places. To do this, you need to select the cells that contain the output Radian values. Right-click on the cells and choose Format Cells. Format Cells Now, under the Category section, select Custom, and then choose the format “0.00” to display decimal values up to 2 decimal places. Category Custom “0.00” up to 2 decimal places The final formatted output is, Formula To Convert Radians to Degrees: Similarly, in Excel, the DEGREE function directly converts a given radian value into its equivalent degree value. DEGREE radian value degree value =DEGREES(B4) & "°" // ° is added to print the output with Degree symbol. =DEGREES(B4) & "°" // ° is added to print the output with Degree symbol. As shown in the image above, the DEGREES function converts radian values into degrees. However, the result may display many decimal places, sometimes up to 10 digits. By using the ROUND Function or ROUNDDOWN Function, you can simplify the output to display the Degree values alone. DEGREES radian values degrees 10 digits =ROUNDDOWN(DEGREES(A1), 0) & "°" or =ROUND(DEGREES(A1), 0) & "°" =ROUNDDOWN(DEGREES(A1), 0) & "°" or =ROUND(DEGREES(A1), 0) & "°" Functions Used Description RADIAN Convert angle from degrees to radians DEGREE Convert angle from radians to degrees ROUND Round a number to a specified number of digits ROUNDDOWN Round a number down towards zero Functions Used Description RADIAN Convert angle from degrees to radians DEGREE Convert angle from radians to degrees ROUND Round a number to a specified number of digits ROUNDDOWN Round a number down towards zero Functions Used Description Functions Used Functions Used Description Description RADIAN Convert angle from degrees to radians RADIAN RADIAN Convert angle from degrees to radians Convert angle from degrees to radians DEGREE Convert angle from radians to degrees DEGREE DEGREE Convert angle from radians to degrees Convert angle from radians to degrees ROUND Round a number to a specified number of digits ROUND ROUND Round a number to a specified number of digits Round a number to a specified number of digits ROUNDDOWN Round a number down towards zero ROUNDDOWN ROUNDDOWN Round a number down towards zero Round a number down towards zero down That’s it. This tutorial was originally published on How Can You Convert an Angle Between Degrees and Radians in Excel? How Can You Convert an Angle Between Degrees and Radians in Excel
