There are 7.50 miles from Washington to Adelphi in northeast direction and 9 miles (14.48 kilometers) by car, following the Riggs Road Northeast route.
Washington and Adelphi are 15 minutes far apart, if you drive non-stop .
This is the fastest route from Washington, DC to Adelphi, MD. The halfway point is Chillum, MD.
Washington, DC and Adelphi, MD are in the same time zone (EDT). Current time in both locations is 11:45 pm.
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