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Excel DEGREES Function

Excel DEGREES function
Summary 
The Excel DEGREES function converts angles (expressed in radians) to degrees. For example, the formula =DEGREES(PI()) returns 180.
Purpose 
Converts radians to degrees
Return value 
Degrees
Syntax 
=DEGREES (angle)
Arguments 
  • angle - Angle in radians that you want to convert to degrees.
Usage notes 

The DEGREES function takes an angle in radians and converts it to degrees. Radians measure angles using the radius of a circle, as illustrated in this image:

Radians measure angles using the radius of a circle

To convert degrees back to radians, you can use the RADIANS function.

Converting degrees to radians manually

Because Pi = 180°, the general formula for degrees to radians is degrees * PI()/180. For example, to convert 45° to radians, the Excel formula would be 45*PI( )/180 which equals 0.7854 radians. More examples in the table below:

Formula Degrees
=2*PI() 360
=PI() 180
=90*PI()/180 90
=45*PI()/180 45
=30*PI()/180 30
=20*PI()/180 20