Using custom fonts in Tkinter Python

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by kanika dot icon Updated: Jul 26, 2023

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Tkinter is a popular Python library for creating graphical user interfaces (GUIs). It provides a wide range of widgets and tools for building interactive applications. Within tkinter, fonts play a crucial role in the visual appearance of text. The text is displayed in GUI elements such as labels, buttons, text boxes, and more.  


In tkinter, fonts define the style, size, weight, and other text attributes. They allow developers to customize the look and feel of their GUIs. It is done by choosing different font families, sizes, and styles. By modifying the font settings, you can create appealing and readable text. That text is aligned with your application's design requirements.  


The tkinter library provides a class called font. The font allows you to define and manipulate fonts. With the Font class, you can specify various properties. It can be the font family (e.g., Arial, Times New Roman), font size, font weight (bold, normal), and font style (italic, Roman). These properties can be combined to create a specific font configuration.  

Different types of tkinter fonts:  

  • System Fonts - Tkinter allows you to use system fonts available on the operating system. You can specify fonts such as "Arial," "Helvetica," "Times New Roman," "Courier," etc.  
  • Named Fonts - Tkinter offers a few predefined named fonts. These fonts include "TkDefaultFont," "TkTextFont," "TkFixedFont," and "TkMenuFont.  
  • Custom Fonts - Allows you to create custom fonts by specifying various attributes. It includes family, size, weight, slant, and underline.  
  • External Fonts - Supports using external fonts that are not available by default. Using the font, you can load custom fonts from files (e.g., True Type fonts).Font class.  
  • Font Metrics - These metrics allow you to position and align text within GUI elements.  


Tkinter is the standard GUI toolkit for Python. It offers various features for working with fonts. These features help customize the appearance of text in your Tkinter.  

Different features available in Tkinter fonts:  

  • Typeface Selection: You can choose from various typefaces (fonts).  
  • Font Size: You can set the font size using the size option. The size can be specified in points (e.g., 12) or pixels (e.g., "12px").  
  • Font Weight: Supports different font weights. Such as "normal," "bold," "italic," and "bold italic."  
  • Font Slant: The slant option allows you to specify the slant style of the font. It can be set to "Roman" (no slant), "italic," or "oblique."  
  • Underline and Overstrike: fonts can be underlined and/or overstruck for emphasis.  
  • Character Sets: Tkinter supports various character sets, including ASCII, Latin-1 (ISO-8859-1), and Unicode.  
  • Text Alignment: Fonts in Tkinter can be aligned.  
  • Font Color: You can set the color of the text using the foreground or fg option.  
  • Font Background: provides an option to set the background color of the text.  
  • Advanced Formatting: Allows you to apply advanced formatting to text. It can be superscript and subscript.  


There are several factors to consider while choosing the right tkinter font. Here are some tips to help you make the right decision:  

  • Purpose and context  
  • Readability  
  • Typeface style  
  • Consistency  
  • Target audience  
  • Platform compatibility  
  • Test and experiment  


Tkinter is a popular Python library for creating graphical user interfaces (GUIs). It provides various tools and functionalities to design and customize GUI elements. This includes text formatting and font manipulation.  


Here are some different ways you can use tkinter fonts to enhance your GUI:  

  • Basic Text Styling:  

Tkinter allows you to apply font settings to individual text widgets. It would be like labels, buttons, or entry fields. You can specify the font family, size, weight, and style.  

  • Global Font Settings:  

Suppose you apply the same font settings to many widgets throughout your GUI. You can configure a global font for the root window. This ensures consistency across different elements.  

  • Dynamic Font Changes:  

Tkinter allows you to change the font of a widget during runtime. This can be useful when you want to provide font customization options to the user.  

  • Font Metrics and Attributes:  

Tkinter provides methods to retrieve font metrics and attributes. It can be the height, width, or whether the font is bold or italic. You can use these attributes to adjust the layout of your GUI elements.  


Using tkinter fonts can enhance the appearance of your applications. It gives them a more professional look.  


Here are some tips on using tkinter fonts to create professional-looking applications:  

  • Choose appropriate font families.  
  • Use consistent font styles.  
  • Pay attention to font size and spacing.  
  • Use font weight and styles.  
  • Align text.  
  • Use colors.  
  • Be mindful of accessibility.  
  • Experiment with font customization.  
  • Test and iterate.  
  • Seek inspiration and study design principles.  


In conclusion, Fonts play a role in the design and aesthetic of an application. Tkinter provides a powerful and versatile set of tools. These tools are used for managing and manipulating fonts. Tkinter fonts offer a wealth of options and flexibility for creating professional-looking applications. You can enhance visual appeal, readability, and consistency by utilizing these fonts. So, embrace the power of Tkinter fonts and take your application's design to the next level.  

Here is an example of using custom fonts in Tkinter Python.

Fig 1: Preview of the code and the output.


In this solution, we are using custom fonts in Tkinter Python.


Follow the steps carefully to get the output easily.

  1. Install Jupyter Notebook on your computer.
  2. Open terminal and install the required libraries with following commands.
  3. Install tkinter by using the following command.
  4. !pip install ipywidgets 
  5. !pip install tkinter
  6. Copy the code using the "Copy" button above and paste it into your IDE's Python file.
  7. Run the file.

I hope you found this useful. I have added the link to dependent libraries, version information in the following sections.

I found this code snippet by searching for "How to use custom fonts in Tkinter Python" in kandi. You can try any such use case!

Dependent Libraries

Tkinter-Designerby ParthJadhav

Python doticonstar image 5885 doticonVersion:v1.0.7doticon
License: Permissive (BSD-3-Clause)

An easy and fast way to create a Python GUI 🐍


            Tkinter-Designerby ParthJadhav

            Python doticon star image 5885 doticonVersion:v1.0.7doticon License: Permissive (BSD-3-Clause)

            An easy and fast way to create a Python GUI 🐍

                      If you do not have tkinter that is required to run this code, you can install it by clicking on the above link and copying the pip Install command from the tkinter page in kandi.

                      You can search for any dependent library on kandi like Tkinter

                      Environment Tested

                      I tested this solution in the following versions. Be mindful of changes when working with other versions.

                      1. The solution is created in Python 3.9.6
                      2. The solution is tested on tkinter version 8.6

                      Using this solution, we are able to use custom fonts in Tkinter Python.


                      1. For any support on kandi solution kits, please use the chat
                      2. For further learning resources, visit the Open Weaver Community learning page.


                      1. What are the different font families available in Tkinter Text?  

                      The system's fonts determine the font families available for the Text widget. The available font families can vary depending on the OS and fonts installed on the system. But several common font families are available across different platforms.  


                      Here are some used font families in Tkinter:  

                      • Arial  
                      • Helvetica  
                      • Times New Roman  
                      • Courier New  
                      • Verdana  
                      • Tahoma  
                      • Georgia  
                      • Comic Sans MS  
                      • Trebuchet MS  
                      • Impact  


                      2. How can I import Tk into my Python program to access tkinter fonts?  

                      To import Tkinter (Tk) and access tkinter fonts in your Python program, you can follow these steps:  

                      • Import the Tkinter module.  
                      • Create an instance of the Tkinter Tk class.  
                      • Access the fonts using the tkinter.font module.  

                      3. What font attributes can be used to customize a text widget's look and feel?  

                      With the text widget, you can use various font attributes to achieve the desired effect. Here are some used font attributes:  

                      • Typeface/Font Family: You can specify the typeface or font family for the text.  
                      • Font Size: This attribute determines the size of the text.  
                      • Font Style: You can apply different styles to the text, such as normal, italic, or oblique.  
                      • Font Weight: This attribute determines the thickness or boldness of the text.  
                      • Text Decoration: You can add visual effects, like underline, overline, or line-through.  
                      • Text Transform: This attribute allows you to control the capitalization of the text.  
                      • Letter Spacing: It determines the spacing between characters in the text.  
                      • Word Spacing: Like letter spacing, this controls the spacing between words in the text.  
                      • Text Alignment: You can align the text to the left, right, and center or justify it (align both left and right edges).  
                      • Text Color: You can specify the color of the text using various color formats. It includes colors, hexadecimal values, RGB values, or HSL values.  

                      4. Are there other widgets besides Label where tkinter fonts can be applied?  

                      Yes, tkinter fonts can be applied to other widgets in the tkinter library. Some of the used widgets that support font customization include:  

                      • Button: You can apply fonts to buttons using the font option.  
                      • Entry: Fonts can be applied to the Entry widgets using the font option.  
                      • Text: The Text widget supports font customization using the font option.  
                      • Listbox: Fonts can be applied to Listbox items using the font option.  
                      • Checkbutton: The Checkbutton widget supports font customization using the font option.  
                      • Radiobutton: Fonts can be applied to the Radiobutton widget using the font option.  
                      • OptionMenu: Fonts can be applied to the OptionMenu widget using the font option.  

                      5. How do you measure font metrics such as width, height, or size in Python programs using tkinter fonts?  

                      In the tkinter library, you can measure font metrics like width, height, or size. In a real-world application, you would use tkinter widgets. It helps display text on the screen and measure the font metrics. 

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