How to round to two decimals in Python?
Tags: python, programming, codenewbie, tutorial
Published: 2021-09-10 14:01:46

---
title: How to round to two decimals in Python?
published: true
date: 2021-09-10 07:48:44 UTC
tags: #python #programming #codenewbie #tutorial
canonical_url: https://itsmycode.com/how-to-round-to-two-decimals-in-python/
---

ItsMyCode |

This tutorial will learn how to round to two decimals in Python using **`round()`** and **`format()`** methods.

## Round to two decimals in Python

When you deal with mathematical calculations in **Numpy** or Python, you will often get a lot of decimal values during the calculation. There are 2 ways to **round off the decimals in Python.** Let us take a look at both approaches in detail.

## Using round() Method

The **`round()`** method returns the floating-point number, the rounded version of a specified number with the specified number of decimals.

**Syntax – round(number, ndigits)**

- **number** – the number to be rounded, can be an integer, decimal/floating.
- **ndigits (optional**) – number of decimals to use when rounding the number. The default value is 0.

**Example – Round to two decimal places**

```python 
# integer round off
print("Integer round off Mid value ",round(7))

# Python code to round off floating number using default value
print("Floating round off ",round(7.7))

# Python code to round off floating number with mid value
print("Floating round off Mid value ",round(7.5))

# floating number round to two decimal places
distance= 4.3847594892369461
print ("The total distance is ", round(distance,2))
```

**Output**

```
Integer round off Mid value 7
Floating round off 8
Floating round off Mid value 8
The total distance is 4.38
```

**Note: ** The behavior of round() for floats can be surprising: for example, round(2.675, 2) gives 2.67 instead of the expected 2.68. This is not a bug: it’s a result of the fact that most decimal fractions can’t be represented exactly as a float. See [Floating Point Arithmetic: Issues and Limitations](https://docs.python.org/2/tutorial/floatingpoint.html#tut-fp-issues) for more information.

## Using format() method

You can use the **`format() `**method to handle the precision of the floating-point numbers, and there are many ways to set the precision of the number in Python.

**Syntax – string.format(value)**

- : introduces the [format spec](https://docs.python.org/reference/lexical_analysis.html#grammar-token-format-spec)
- 0 enables sign-aware zero-padding for numeric types
- .2 sets the [precision](https://docs.python.org/library/string.html#grammar-token-precision) to 2
- f displays the number as a fixed-point number

Alternatively,  **Using “`%`”:- ** “`%`” operator is used to format as well as set precision in Python.

```python 
# Python code to round to two decimals using format

# initializing value
distance= 4.7287543

# using format() to print value with 2 decimal places
print ("The value of number till 2 decimal place(using format()) is : ",end="")
print ("{0:.2f}".format(distance))

# using "%" to print value with 2 decimal places
print ("The value of number till 2 decimal place(using %) is : ",end="")
print ('%.2f'%distance)

```

**Output**

```
The value of number with 2 decimal place(using format()) is : 4.73
The value of number with 2 decimal place(using %) is : 4.73
```

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