Convert Kilometers to Miles

Source Code

# Program to convert kilometers into miles 
# Input is provided by the user in kilometers

# take input from the user
kilometers = float(input('How many kilometers?: '))

# conversion factor
conv_fac = 0.621371

# calculate miles
miles = kilometers * conv_fac
print('%0.3f kilometers is equal to %0.3f miles' %(kilometers,miles))

Output

How many kilometers?: 5.5
5.500 kilometers is equal to 3.418 miles

Explanation

In this program, we use the ask the user for kilometers and convert it to miles by multiplying it with the conversion factor. With a slight modification, we can convert miles to kilometers. We ask for miles and use the following formula to convert it into kilometers.

kilometers = miles / conv_fac