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JavaScript ceil() Method

Math Object Reference JavaScript Math Object

Example

Round a number upward to it's nearest integer:

Math.ceil(1.4)

The result will be:

2

Try it yourself »


Definition and Usage

The ceil() method rounds a number UPWARDS to the nearest integer, and returns the result.

If the passed argument is an integer, the value will not be rounded.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The ceil() method is supported in all major browsers.


Syntax

Math.ceil(x)

Parameter Values

Parameter Description
x Required. The number you want to round

Return Value

Type Description
Number The nearest integer when rounding upwards

Technical Details

JavaScript Version: 1.0


More Examples

Example

Use the ceil() method on different numbers:

var a = Math.ceil(0.60);
var b = Math.ceil(0.40);
var c = Math.ceil(5);
var d = Math.ceil(5.1);
var e = Math.ceil(-5.1);
var f = Math.ceil(-5.9);

The result of a,b,c,d,e, and f will be:

1
1
5
6
-5
-5

Try it yourself »


Math Object Reference JavaScript Math Object

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