There are 16.93 miles from Marietta to Alpharetta in northeast direction and 18.85 miles (30.34 kilometers) by car, following the GA 120 Alternate route.
Marietta and Alpharetta are 26 minutes far apart, if you drive non-stop.
This is the fastest route from Marietta, GA to Alpharetta, GA. The halfway point is .
Marietta, GA and Alpharetta, GA are in the same time zone (EDT). Current time in both locations is 1:12 pm.
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