Skip to main content
Version: 4.0.1

Math.ceil()

The Math.ceil() function always rounds up and returns the smaller integer greater than or equal to a given number.

Syntax​

Math.ceil(x)

Parameters​

  • x
    • : A number.

Return value​

The smallest integer greater than or equal to x. It's the same value as -Math.floor(-x).

Description​

Because ceil() is a static method of Math, you always use it as Math.ceil(), rather than as a method of a Math object you created (Math is not a constructor).