Welcome folks today in this blog post we will be building a fahrenheit to celsius temperature converter gui desktop app in tkinter using python. All the full source code of application is shown below.

Get Started

In order to get started you need to make an app.py file and copy paste the following code

app.py

#!/usr/bin/python3

# Converts Fahrenheit to Celsius

import tkinter


def convert_to_celsius():
    fahrenheit = float(input_box.get())
    celsius = (fahrenheit-32)*5/9
    output_label.config(text=round(celsius, 2))


window = tkinter.Tk()
window.title("C to F Converter")
window.minsize(width=250, height=50)

input_box = tkinter.Entry(justify=tkinter.RIGHT)
output_label = tkinter.Label(text="", justify=tkinter.RIGHT, width=8)
action_button = tkinter.Button(text='Convert', command=convert_to_celsius)

input_box.pack(padx=20, pady=20)
output_label.pack(padx=20, pady=20, side=tkinter.RIGHT)
action_button.pack(padx=20, pady=20)


window.mainloop()

Now if you execute the python script by typing the below command as shown below

python app.py