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Excel RADIANS Function

The RADIANS function in Excel is used to convert angles measured in degrees into radians. This function is a Math Function and is a worksheet function, which means that it can be entered in a cell as the part of a formula.

Figure 1: Excel RADIANS Function

The syntax of the Function

The excel syntax for the function is as follows:

=RADIANS (angle/degrees)

The parameters of the formula are as:

  • Degrees/angles – an angle or degree value that needs to be converted to radians


Based on the example in the figure above, the degrees in the cells B6, B7….are all converted into their respective radians. Some more examples can be 120 degrees converted to 2.094395102 radians or 90 degrees as 1.570796327 radians respectively.

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