Converts degrees to radians. Returns the size, in radians, of an angle with the specified number of degrees.
radians(numeric)
is any exact numeric (numeric, dec, decimal, tinyint, smallint, or int), approximate numeric (float, real, or double precision), or money column, variable, constant expression, or a combination of these.
select radians(2578)
----------- 44
radians, a mathematical function, converts degrees to radians. Results are of the same type as numeric.
To express numeric or decimal dataypes, this function returns precision: 38, scale 18.
When money datatypes are used, internal conversion to float may cause loss of precision.
ANSI SQL – Compliance level: Transact-SQL extension.
Any user can execute radians.
Documentation Transact-SQL Users Guide
Function degrees