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# Temperature converter in python

In this example we will create a temperature converter in python

Here are the formulas for temperature conversion

Fahrenheit to Celsius formula:

(°F – 32) x 5/9 = °C or in plain english,

Celsius to Fahrenheit formula:

(°C × 9/5) + 32 = °F

### Code

#### basic example

```#!/usr/bin/env python

def convert(temperature, unit):
unit = unit.lower()
if unit == "c":
temperature = 9.0 / 5.0 * temperature + 32
return "%s degrees Fahrenheit"% temperature
if unit == "f":
temperature = (temperature - 32)  / 9.0 * 5.0
return "%s degrees Celsius"% temperature

inptemp = int(input("What is the temperature?\n"))
inpunit = str(input("Please enter the unit of measure (f or c):\n"))

print (convert(inptemp, inpunit))
```

Output

#### Tkinter example

```from tkinter import *
from tkinter import messagebox

def cal():
try:
inputCelsius = float(TextBox1.get("1.0", "end-1c"))
fahrenheit = (inputCelsius * 1.8) + 32
TextBox2.insert(INSERT,fahrenheit)
except:

def calF():
try:
inputFah = float(TextBox3.get("1.0", "end-1c"))
Celsius = (inputFah - 32) * 5/9
TextBox4.insert(INSERT,Celsius)
except:

def clr():
TextBox1.delete('1.0', END)
TextBox2.delete('1.0', END)
TextBox3.delete('1.0', END)
TextBox4.delete('1.0', END)

root = Tk()
root.title("Temperature Converter")
root.geometry("400x500")
root.resizable(width=FALSE, height=False)

label1 = Label(root, text="\nEnter Temperature in Celsius")
label1.grid(row=3, column=3)
TextBox1 = Text(root, height=2, width=7,font=(30))
TextBox1.grid(row=4, column=3, sticky=N)

b1 = Button(compound=LEFT, text="Submit", foreground="blue",command=cal)
b1.grid(row=5,column=3)
label2 = Label(root, text="\nTemperature in Fahrenheit")
label2.grid(row=6, column=3)
TextBox2 = Text(root, height=2, width=7,font=(30))
TextBox2.grid(row=7, column=3, sticky=N)

label3= Label(root,text="-------------------------------------")
label3.grid(row=8,column=3)

label1 = Label(root, text="\nEnter Temperature in Fahrenheit")
label1.grid(row=9, column=3)
TextBox3 = Text(root, height=2, width=7,font=(30))
TextBox3.grid(row=10, column=3, sticky=N)

b2 = Button(compound=LEFT, text="Submit", foreground="blue",command=calF)
b2.grid(row=11,column=3)
label4 = Label(root, text="\nTemperature in Celsius")
label4.grid(row=12, column=3)
TextBox4 = Text(root, height=2, width=7,font=(30))
TextBox4.grid(row=13, column=3, sticky=N)
label5 = Label(root, text="")
label5.grid(row=14, column=3)
b3 = Button(compound=LEFT, text="Clear TextBox", fg="white",height=2,width=12,background="black",borderwidth=2, relief="groove",command=clr)
b3.grid(row=15,column=3)

label2 = Label(root, font=("Arial", 28), text="Temperature Converter")
label2.grid(row=1, column=3)

root.mainloop()
```

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