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---
title: Math.ceil()
short-title: ceil()
slug: Web/JavaScript/Reference/Global_Objects/Math/ceil
page-type: javascript-static-method
browser-compat: javascript.builtins.Math.ceil
sidebar: jsref
---
The **`Math.ceil()`** static method always rounds up and returns the smallest integer greater than or equal to a given number.
{{InteractiveExample("JavaScript Demo: Math.ceil()")}}
```js interactive-example
console.log(Math.ceil(0.95));
// Expected output: 1
console.log(Math.ceil(4));
// Expected output: 4
console.log(Math.ceil(7.004));
// Expected output: 8
console.log(Math.ceil(-7.004));
// Expected output: -7
```
## Syntax
```js-nolint
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)`](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/floor).
## 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).
## Examples
### Using Math.ceil()
```js
Math.ceil(-Infinity); // -Infinity
Math.ceil(-7.004); // -7
Math.ceil(-4); // -4
Math.ceil(-0.95); // -0
Math.ceil(-0); // -0
Math.ceil(0); // 0
Math.ceil(0.95); // 1
Math.ceil(4); // 4
Math.ceil(7.004); // 8
Math.ceil(Infinity); // Infinity
```
## Specifications
{{Specifications}}
## Browser compatibility
{{Compat}}
## See also
- {{jsxref("Math.abs()")}}
- {{jsxref("Math.floor()")}}
- {{jsxref("Math.round()")}}
- {{jsxref("Math.sign()")}}
- {{jsxref("Math.trunc()")}}
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