Distance calculator country restriction

In the below example we have used the Calculator Add-on to demonstrate how flexible Super Forms in a whole is. The form uses Google places API to auto populate the addresses and calculates the difference between the 2 addresses entered by the user. Based on the result a price is being calculated. Of course you can customize the math for this calculation.
Field is required!
Field is required!
From:
From
Enter from address
Enter from address
Destination:
Destination
Enter your destination
Enter your destination
Destination:
Destination
Enter your destination
Enter your destination
Distance:
0 km
Field is required!
Field is required!
Costs:
$0.00
Field is required!
Field is required!