SIN Function in Excel: Sine of an Angle

⏱ 1 min readUpdated 28 September 2026

MathLevel: IntermediateAvailable in: Excel 2007+

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

SIN expects radians. Wrap degrees in RADIANS().

Syntax

=SIN(number)
Argument What it means
number Angle in radians.

Examples

Example 1

=B2*SIN(RADIANS(C2))

Height of a ramp from its length and angle.

COS · RADIANS

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