Round Number up to 2 decimal places in Python

Rounding up numbers is the most common use case in any programming language that a developer has to deal with.

If you are new to Python Programming and looking for ways to convert a float value with 2 decimal precision, below are various ways to achieve it.

Option 1: using built-in round() function

    round(number[, ndigits])
    number = 99.981234
    rounded_number = round(number, 2)


    Built-in round() function:

    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.

    Read: Floating Point Arithmetic: Issues and Limitations

Option 2: using String formatting

Option 3: using f-string (Python 3.6+)

Option 4: using decimal module

Option 5: using numpy module

    import numpy as np
    number = 299.1415
    rounded_number = np.round(number, 2)

    Read More:

Option 6: using math module

I have added the links to the official documentation for each example so you can visit and get more details.


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Author Info:

Rakesh is a seasoned developer with over 10 years of experience in web and app development, and a deep knowledge of operating systems. Author of insightful How-To articles for Code2care.

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