Skip to content
ExcelExcel 2013+

ACOT function in Excel

Returns the arccotangent of a number

=ACOT(number)

ACOT syntax and parameters

One argument, one required.

  • numbernumberRequired

    Number is the cotangent of the angle you want. This must be a real number.

ACOT examples

Formulas you'll actually reuse.

  1. The arccotangent of 1, in radians:

    =ACOT(1)

    Result0.7854

  2. The same angle in degrees — wrap in DEGREES:

    =DEGREES(ACOT(1))

    Result45

ACOT in Google Sheets

Same name — your formula ports as-is.

Try ACOT in the playground

Edit the example — nothing to install.

Preloaded with the ACOT formula from Example 1 — change anything and watch it respond.

Loading the editor…