Most healthy dogs can run as far as 20 to 40 miles each week depending on the dogs age and health.
I take my dog running at least 2 miles each day which gives both of us some good exercise.
I try to walk my dog everyday for at least 1 mile and that is also good for both me and my dog for our health.
Walking is a great way for both dogs and humans to stay healthy and keep from gaining too much weight.
I try to walk as often as I can and only drive to places that take too long to walk or are impossible to walk too.
Some dogs love long walks and some dogs hate long walks.
Just start walking as far as you can with the dog and if the dog is feeling too tired then that would be your time limit to walking with the dog.