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JavaScript round() Method

Math Object Reference JavaScript Math Object

Example

Round a number to the nearest integer:

Math.round(2.5);

The result will be:

3

Try it yourself »


Definition and Usage

The round() method rounds a number to the nearest integer.

Note: 2.49 will be rounded down, 2.5 will be rounded up.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

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


Syntax

Math.round(x)

Parameter Values

Parameter Description
x Required. The number to be rounded

Return Value

Type Description
Number The nearest integer

Technical Details

JavaScript Version: 1.0


More Examples

Example

Round different numbers to the nearest integer:

var a = Math.round(2.60);
var b = Math.round(2.50);
var c = Math.round(2.49);
var d = Math.round(-2.60);
var e = Math.round(-2.50);
var f = Math.round(-2.49);

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

3
3
2
-3
-2
-2

Try it yourself »


Math Object Reference JavaScript Math Object

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