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JavaScript ceil() Method

Math Object Reference

JavaScript Math Object

Definition and Usage

The ceil() method returns the value of a number rounded UPWARDS to the nearest integer.

Syntax

Math.ceil(x)

Parameter	Description
x	Required. A number

Example

Example

Use the ceil() method on different numbers:

<script type="text/javascript">

document.write(Math.ceil(0.60) + "<br />");
document.write(Math.ceil(0.40) + "<br />");
document.write(Math.ceil(5) + "<br />");
document.write(Math.ceil(5.1) + "<br />");
document.write(Math.ceil(-5.1) + "<br />");
document.write(Math.ceil(-5.9));

</script>

The output of the code above will be:

1
1
5
6
-5
-5

Try it yourself »

Math Object Reference

JavaScript Math Object

From http://www.w3schools.com (Copyright Refsnes Data)