F-strings support comprehensive number formatting using format specifications after a colon: value = 1234.5678 # Basic decimal places print(f"Two decimals: {value:.2f}") # 1234.57 print(f"No decimals: {value:.0f}") # 1235 print(f"With sign: {value:+.2f}") # +1234.57 # Padding and alignment print(f"Right aligned: {value:10.2f}") # 1234.57 print(f"Left aligned: {value:<10.2f}") # 1234.57 print(f"Center aligned: {value:^10.2f}") # 1234.57 print(f"Zero padded: {value:010.2f}") # 001234.57 # Thousands separator print(f"With commas: {value:,.2f}") # 1,234.57 # Percentage ratio = 0.857 print(f"Percentage: {ratio:.1%}") # 85.7% # Scientific notation big_number = 1500000 print(f"Scientific: {big_number:.2e}") # 1.50e+06 # Different bases num = 255 print(f"Hex: {num:x}") # ff print(f"Binary: {num:b}") # 11111111 print(f"Octal: {num:o}") # 377

December 22, 2025 - They were introduced in Python 3.6 and have completely changed how I write code. They are fast, readable, and allow you to format numbers directly within the string. # Monthly subscription cost for a streaming service in the USA monthly_fee = 14.991234 # Using an f-string to format to 2 decimal places formatted_fee = f"Your monthly subscription is: ${monthly_fee:.2f}" print(formatted_fee) # Output: Your monthly subscription is: $14.99

We use three different format codes for the three numbers included in the string: ... The float format code rounding to 2 decimal places .2f.

March 18, 2026 - To use Python’s format specifiers in a replacement field, you separate them from the expression with a colon (:). As you can see, your float has been rounded to two decimal places. You achieved this by adding the format specifier .2f into the replacement field. The 2 is the precision, while the lowercase f is an example of a presentation type. You’ll see more of these later. Note: When you use a format specifier, you don’t actually change the underlying number. You only improve its display. Python’s f-strings also have their own mini-language that allows you to format your output in a variety of different ways.

February 27, 2023 - Also, using str.format() is simple, where you have to write within the curly braces how many places you want after the decimal followed by the variable name in the format function.

September 2, 2019 - To specify a level of precision, we need to use a colon (:), followed by a decimal point, along with some integer representing the degree of precision. We place this inside the curly braces for an f-string, after the value we want to format.

May 18, 2023 - In Python, the .2f format specifier is used to format floating-point numbers as strings with two decimal places.

November 4, 2024 - By applying the .2f format specifier within the format() method and using the "{:.2f}" format string, the number is formatted to have two decimal places. The resulting formatted_number is then printed, which outputs 3.14 ...

March 13, 2024 - Use f-strings to simplify output with multiple values. Format numbers with leading zeros and fixed precision.

April 13, 2025 - Here, {:.2f} is the format specifier within the curly braces. The colon (:) separates the field name from the format specifier, and 2 is the number of decimal places. f-Strings are a more concise and intuitive way to format strings in Python 3.6 and later.

January 11, 2023 - Use str.format() with “{:.2f}” as string and float as a number to display 2 decimal places in Python. Call print and it will display the...

June 27, 2021 - We can use the fortmat() string function in python to output the desired text in the order we want. ... Now extending the formatting using f keyword ( look at the piece above ) , lets try to use that in numbers, particularly involving decimals ...

Let’s look at an example of how we can use str.format() to round a number to two decimal places: ... Let’s look at another approach for string formatting. In Python, the % operator, also called modulus operator, We can use this operator ...

August 9, 2024 - Python provides for managing precise data and decimal points, the round() function is used to round a number to a specified number of decimal places. Alternatively, string formatting options, such as the f-string syntax or the format() method, allow ...

To format values in an f-string, add placeholders {}, a placeholder can contain variables, operations, functions, and modifiers to format the value. ... A placeholder can also include a modifier to format the value.

July 23, 2025 - Python format() function is an inbuilt function used to format strings. Unlike f-string, it explicitly takes the expression as arguments. ... The % operator can also be used to get two decimal places in Python.

August 2, 2023 - Example: truncate to 2 decimal places in f-string · num = 1.12745 formatted = f"{num:.2f}" formatted # >>> '1.13' In some Python versions such as 2.6 and 3.0, you must specify positional indexes in the format string: # ValueError in python 2.6 and 3.0 a=1 b=2 "{}-{}".format(a,b) # NO ERROR in any python version "{0}-{1}".format(a,b) # >>> "1-2" Python 3 docs: Format Specification Mini Language ·

June 22, 2022 - Note that the %f formatter must be nested inside quotation marks, and should be separated from the floating number which it is formatting by a modulo operator (%): "%f" % floatNumber. Let's take a look at another example. floatNumber = 1.9876 print("%.1f" % floatNumber) # 2.0 · In the code above, we added .1 between % and f in the %f operator...