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SIN Function in Excel: Syntax, Examples and Free Practice

By Rinkesh Shah, founder of Cellgrids.

SIN is an Excel Math & Trig function. Returns the sine of an angle given in radians.

SIN syntax

=SIN(number)

Arguments

When to use SIN

SIN is used in financial models and engineering-style calculations where precise numeric work is needed.

Practice SIN online, free

Open the live Excel-style spreadsheet and try SIN yourself. No Excel install or sign-up needed to start.

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More Math & Trig functions

Frequently asked questions

What does the SIN function do in Excel?

Returns the sine of an angle given in radians.

What is the syntax of SIN in Excel?

The syntax is =SIN(number). number: A number to use in the calculation.

Where can I practice SIN online for free?

Open the free live spreadsheet on Cellgrids and try SIN yourself. No Excel install is needed and you can start without signing up.

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