Often you may want to round numbers up or down to a specific number of decimal places in PowerShell.

You can use the **[math]::ceiling** and **[math]::floor** commands to do so.

The following examples show how to use these commands in practice.

**Example 1: Round Number Up to Nearest Integer**

We can use the following syntax to define an array of numbers and then round each number up to the nearest integer:

**$some_values = @(12.3488, 10.1, 20.0092, 15.972)
$some_values | ForEach-Object { [math]::ceiling($_) }
**

The following screenshot shows how to use this syntax in practice:

Notice that each value in the array has been rounded up to the nearest integer.

**Example 2: Round Number Up to Specific Number of Decimal Places**

We can use the following syntax to define an array of numbers and then round each number up to two decimal places:

**$some_values = @(12.3488, 10.1, 20.0092, 15.972)
$some_values | ForEach-Object { [math]::ceiling($_*100) / 100 }
**

The following screenshot shows how to use this syntax in practice:

Notice that each value in the array has been rounded up to a max of two decimal places.

**Note**: We multiplied each value by **100**, then applied the **ceiling** command, then divided by **100** to round each value up to exactly 2 decimal places.

**Example 3: Round Number Down to Nearest Integer**

We can use the following syntax to define an array of numbers and then round each number down to the nearest integer:

**$some_values = @(12.3488, 10.1, 20.0092, 15.972)
$some_values | ForEach-Object { [math]::floor($_) }
**

The following screenshot shows how to use this syntax in practice:

Notice that each value in the array has been rounded down to the nearest integer.

**Example 4: Round Number Down to Specific Number of Decimal Places**

We can use the following syntax to define an array of numbers and then round each number down to two decimal places:

**$some_values = @(12.3488, 10.1, 20.0092, 15.972)
$some_values | ForEach-Object { [math]::floor($_*100) / 100 }
**

The following screenshot shows how to use this syntax in practice:

Notice that each value in the array has been rounded down to a max of two decimal places.

**Related Tutorials**

The following tutorials explain how to perform other common tasks in PowerShell:

PowerShell: How to Calculate the Average of an Array

PowerShell: How to Calculate Sum of Values in Array

PowerShell: How to Find Minimum and Maximum Values in Array

PowerShell: How to Find Duplicate Values in Array