def print_menu():
print('1. Kilometers to Nautical Miles')
print('2. Nautical Miles to Kilometers')
def km_nmiles():
km = float(input('Enter a distance in kilometers: '))
nmiles = km / 1.852
print('Distance in miles: {0}'.format(nmiles))
def nmiles_km():
nmiles = float(input('Enter a distance in nautical miles: '))
km = nmiles * 1.852
print('Distance in kilometers: {0}'.format(km))
print_menu()
choice = input('Which conversion would you like to do?: ')
if choice == '1':
km_nmiles()
if choice == '2':
nmiles_km