## How to Use the Python round() Function

In this tutorial, you'll learn how to use the Python **round**() function. The **round**() function returns a number rounded to a specified number of digits.

### Python round() Syntax

The syntax of **round**() is as follows:

round(number[, digits])

### Parameters

: Required. The number that you want to round.**Number**: Optional. If it is omitted or is None,**Digits****round**() returns therounded to the nearest integer.*number*

### Examples

#### Round a Number to 2 Decimal Places

**Example**:

number = 100.4570

rounded_number = round(number, 2)

print("The rounded number is", rounded_number)

**Output**:

The rounded number is 100.46

#### Round a Number to 3 Decimal Places

**Example**:

number = 100.4570

rounded_number = round(number, 3)

print("The rounded number is", rounded_number)

**Output**:

The rounded number is 100.457

#### Round a Number to the Nearest Integer

**Example 1:**

number = 220.7570

rounded_number = round(number)

print("The rounded number is", rounded_number)

**Output**:

The rounded number is 221

**Example 2:**

number = 220.4970

rounded_number = round(number, None)

print("The rounded number is", rounded_number)

**Output** :

The rounded number is 220

In this tutorial, you've learned how to use the **round**() function. The Python **round**() is a function to round and return a number rounded to a specified number of digits.