Miles between San Mateo, CA and Portsmouth, NH

There are
3,178 mi
from San Mateo, CA to Portsmouth, NH

That's the driving distance. It would take 2 days 8 hours to go from San Mateo, California to Portsmouth, New Hampshire.

The flight distance (direct flight from San Mateo, CA to Portsmouth, NH) is 2,699.99 mi.

3,178 mi = 4.83 kms