ASIN Function in Excel: Angle From a Sine

⏱ 1 min readUpdated 28 September 2026

MathLevel: ExpertAvailable in: Excel 2007+

In this article
  1. Syntax
  2. Examples
  3. Example 1
  4. Related functions

ASIN returns the angle (in radians) whose sine is the given number.

Syntax

=ASIN(number)
Argument What it means
number Between −1 and 1.

Examples

Example 1

=DEGREES(ASIN(0.5))

Returns 30.

SIN · DEGREES

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