To the Pinehurst East of Charlotte it is 495.21 miles. To the Pinehurst West of Charlotte add an extra five miles to the trip.
It is 586 miles according to Google Maps.
Pittsburgh is approximately 20 minutes from Mars Pennsylvania.
239 miles
Elkin, NC
It is 449.24 miles according to MapQuest.
About 8 and a half hours.
If you're going to Niagara Falls on the Buffalo, NY, side, the midpoint is going to be somewhere in the neighborhood of Washington, PA; not as far as Pittsburgh.
Consider Pittsburgh, PA.
437 miles
$6.00 for a 2-axle car.
240 miles
It will take approximately 8 hours and 48 minutes