There are
2,988 mi
from San Diego, CA to Claremont, NH
That's the driving distance. It would take 2 days 6 hours to go from San Diego, California to Claremont, New Hampshire.
The flight distance (direct flight from San Diego, CA to Claremont, NH) is 2,513.96 mi.
2,988 mi = 3.22 kms