Calculate shipping about distance

Hi
How can I configure the shipping according to the distance, I saw extensions, estimated shipping and taxes, but only the provinces come, is it possible to add the districts?
or what other option do you recommend?, I need to charge shipping based on distance.
Regards

Distance-based shipping involves additional cost as google map API is not free.
Alternative options could be postal or city-based shipping although city-based shipping is not a viable solution as it is a free text entered by customers.
Therefore, postal based shipping is the optimal alternative of distance-based shipping unless you have no problem of bearing the additional cost for google map API.

You can check my shipping module that supports all the options mentioned above https://www.opencart.com/index.php?rout ... n_id=13705

Check out some of Johnathan's extensions as a lot of his are to do with Shipping, they're very high quality and if one doesn't do what you need he is very helpful:
https://www.opencart.com/index.php?rout ... arthinking