There are
3,139 mi
from San Mateo, CA to Nashua, NH
That's the driving distance. It would take 2 days 7 hours to go from San Mateo, California to Nashua, New Hampshire.
The flight distance (direct flight from San Mateo, CA to Nashua, NH) is 2,668.50 mi.
3,139 mi = 4.83 kms