I am attempting to convert the azimuth field in a shapefile from degrees to radians using the Field Calculator, but after providing the equation, all the attributes in the new field show up as zero. Equation is [azimuth]*(pi/180). I also tried the calculation using the approximate decimal value of pi/180 and got the same result.

Attached are screenshots of the dialogue window and the problem with the zeros in the attribute table.

Is there a way to fix this without having to use Python or R, and if so how?

Any help would be greatly appreciated!

try the python parser You get access to the math functions

!azim! is the name of an azimuth field in a table

math.radians(!azim!)

!azim!*math.pi/180